Session save error after screen disconnected

[mugridge@…]

The following bug report has been submitted:
Platform:        macOS-10.14.6-x86_64-i386-64bit
ChimeraX Version: 1.2.5 (2021-05-24 04:13:57 UTC)
Description
Can't save session! ValueError: error processing: 'tools' -> -> : Error while saving session data for 'tools' -> ->

File "/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/chimerax/core/session.py", line 262, in discovery
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))

Log:
UCSF ChimeraX version: 1.2.5 (2021-05-24)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open PDB 7mgs

'PDB' has no suffix  

> open 7mgs

Summary of feedback from opening 7mgs fetched from pdb  
---  
notes | Fetching compressed mmCIF 7mgs from
http://files.rcsb.org/download/7mgs.cif  
Fetching CCD CL from http://ligand-expo.rcsb.org/reports/C/CL/CL.cif  
  
7mgs title:  
SARS-CoV-2 main protease in complex with N-terminal autoprocessing substrate
[more info...]  
  
Chain information for 7mgs #1  
---  
Chain | Description  
A | 3C-like proteinase  
B | ser-ala-val-leu-GLN-ser-gly-phe  
  
Non-standard residues in 7mgs #1  
---  
CL — chloride ion  
  
7mgs mmCIF Assemblies  
---  
1| author_and_software_defined_assembly  
  

> set bgColor white

> sequence chain #1/B

Alignment identifier is 1/B  

> sequence chain #1/A

Alignment identifier is 1/A  

> sequence chain #1/B

Destroying pre-existing alignment with identifier 1/B  
Alignment identifier is 1/B  

> hide #1 models

> show #1 models

> color byhetero

> hbonds reveal true

513 hydrogen bonds found  

> hbonds reveal true

513 hydrogen bonds found  

> ~hbonds

> hide sticks

Expected a collection of one of 'atoms', 'bonds', 'cartoons', 'models',
'pbonds', 'pseudobonds', 'ribbons', or 'surfaces' or a keyword  

> style stick

Changed 2497 atom styles  

> style stick

Changed 2497 atom styles  

> hide sticks chain B

Expected a collection of one of 'atoms', 'bonds', 'cartoons', 'models',
'pbonds', 'pseudobonds', 'ribbons', or 'surfaces' or a keyword  

> select /B

58 atoms, 56 bonds, 10 residues, 1 model selected  

> style sel stick

Changed 58 atom styles  

> style sel ball

Changed 58 atom styles  

> style sel stick

Changed 58 atom styles  

> select /A

2439 atoms, 2410 bonds, 387 residues, 1 model selected  

> hide sel atoms

> unselect /A

Unknown command: unselect /A  

> deselect /A

Unknown command: deselect /A  

> select

2497 atoms, 2466 bonds, 397 residues, 1 model selected  

> select none

Expected an objects specifier or a keyword  

> select /water

Nothing selected  

> select /HOH

Nothing selected  

> select /HETATM

Nothing selected  

> select water

Expected an objects specifier or a keyword  

> select solvent

83 atoms, 83 residues, 1 model selected  

> hide sel atoms

> save /Users/jeffmugridge/Documents/TALKS/group-meetings/MPro-
> structures-1.bmp width 1070 height 696 supersample 3

> open /Users/jeffmugridge/Documents/RESEARCH/Projects-
> Trmt1/Refine_8_refine_1.pdb

Summary of feedback from opening
/Users/jeffmugridge/Documents/RESEARCH/Projects-Trmt1/Refine_8_refine_1.pdb  
---  
warnings | Ignored bad PDB record found on line 1  
REMARK Date 2021-07-09 Time 17:18:35 EDT -0400 (1625865515.57 s)  
  
Ignored bad PDB record found on line 2  
REMARK PHENIX refinement  
  
Ignored bad PDB record found on line 4  
REMARK ****************** INPUT FILES AND LABELS
******************************  
  
Ignored bad PDB record found on line 5  
REMARK Reflections:  
  
Ignored bad PDB record found on line 6  
REMARK file name :
/home/angel/xray/nsp5/20210301_NSLSII/JM079-MR/mtz_170_resolution/Refine/Refine_8/Refine_1_refine_data.mtz  
  
42 messages similar to the above omitted  
  
Chain information for Refine_8_refine_1.pdb #2  
---  
Chain | Description  
A | No description available  
B | No description available  
C | No description available  
  

> hide #2 models

> show #2 models

> hide #1 models

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2149, in <lambda>  
dw.closeEvent = lambda e, *, tw=tool_window, mw=mw: mw.close_request(tw, e)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 626, in close_request  
tool_instance.delete()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/seq-view/tool.py", line 512, in delete  
ToolInstance.delete(self)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/tools.py", line 154, in delete  
self.session.ui.remove_tool(self)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 345, in remove_tool  
self.main_window.remove_tool(tool_instance)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 725, in remove_tool  
tw._destroy()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2049, in _destroy  
self.__toolkit.destroy()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2189, in destroy  
sbar.destroy()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/statusbar.py", line 51, in destroy  
v.delete()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 438, in delete  
self.make_current()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 478, in make_current  
return self._opengl_context.make_current()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 99, in make_current  
qc = self._initialize_context()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 125, in _initialize_context  
qc.setScreen(self._screen)  
RuntimeError: wrapped C/C++ object of type QScreen has been deleted  
  
RuntimeError: wrapped C/C++ object of type QScreen has been deleted  
  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 125, in _initialize_context  
qc.setScreen(self._screen)  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2149, in <lambda>  
dw.closeEvent = lambda e, *, tw=tool_window, mw=mw: mw.close_request(tw, e)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 626, in close_request  
tool_instance.delete()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/seq-view/tool.py", line 512, in delete  
ToolInstance.delete(self)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/tools.py", line 154, in delete  
self.session.ui.remove_tool(self)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 345, in remove_tool  
self.main_window.remove_tool(tool_instance)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 725, in remove_tool  
tw._destroy()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2049, in _destroy  
self.__toolkit.destroy()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2189, in destroy  
sbar.destroy()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/statusbar.py", line 51, in destroy  
v.delete()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 438, in delete  
self.make_current()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 478, in make_current  
return self._opengl_context.make_current()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 99, in make_current  
qc = self._initialize_context()  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 125, in _initialize_context  
qc.setScreen(self._screen)  
RuntimeError: wrapped C/C++ object of type QScreen has been deleted  
  
RuntimeError: wrapped C/C++ object of type QScreen has been deleted  
  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/graphics/opengl.py", line 125, in _initialize_context  
qc.setScreen(self._screen)  
  
See log for complete Python traceback.  
  

> show #1 models

> hide #1 models

> view #2 clip false

> show #2 target m

> ui tool show "Show Sequence Viewer"

> select /A

4755 atoms, 4778 bonds, 686 residues, 2 models selected  

> select /B

2424 atoms, 2475 bonds, 316 residues, 2 models selected  

> hide sel & #2 cartoons

> show #1 models

> matchmaker

Missing or invalid "matchAtoms" argument: empty atom specifier  

> matchmaker #2 to #1

Parameters  
---  
Chain pairing | bb  
Alignment algorithm | Needleman-Wunsch  
Similarity matrix | BLOSUM-62  
SS fraction | 0.3  
Gap open (HH/SS/other) | 18/18/6  
Gap extend | 1  
SS matrix |  |  | H | S | O  
---|---|---|---  
H | 6 | -9 | -6  
S |  | 6 | -6  
O |  |  | 4  
Iteration cutoff | 2  
  
Matchmaker 7mgs, chain A (#1) with Refine_8_refine_1.pdb, chain B (#2),
sequence alignment score = 1595.1  
RMSD between 303 pruned atom pairs is 0.497 angstroms; (across all 305 pairs:
0.669)  
  

> matchmaker #2 /A to #1

Parameters  
---  
Chain pairing | bb  
Alignment algorithm | Needleman-Wunsch  
Similarity matrix | BLOSUM-62  
SS fraction | 0.3  
Gap open (HH/SS/other) | 18/18/6  
Gap extend | 1  
SS matrix |  |  | H | S | O  
---|---|---|---  
H | 6 | -9 | -6  
S |  | 6 | -6  
O |  |  | 4  
Iteration cutoff | 2  
  
Matchmaker 7mgs, chain A (#1) with Refine_8_refine_1.pdb, chain A (#2),
sequence alignment score = 1555.1  
RMSD between 297 pruned atom pairs is 0.810 angstroms; (across all 299 pairs:
0.829)  
  

> view #1 clip false

> select /wat

Nothing selected  

> select /A

4755 atoms, 4778 bonds, 686 residues, 2 models selected  

> hide sel atoms

> select solvent

448 atoms, 448 residues, 2 models selected  

> hide sel atoms

> save /Users/jeffmugridge/Documents/RESEARCH/Projects-Trmt1/Mpro-
> alignments.cxs

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 281, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/seq-view/tool.py", line 695, in take_snapshot  
'ToolInstance': ToolInstance.take_snapshot(self, session, flags),  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/tools.py", line 96, in take_snapshot  
data['shown'] = self.tool_window.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 1983, in shown  
return self.__toolkit.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2267, in shown  
return not self.dock_widget.isHidden()  
RuntimeError: wrapped C/C++ object of type QDockWidget has been deleted  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 260, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 284, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x10ad08b80> -> <chimerax.seq-
view.tool.SequenceViewer object at 0x1348d8610>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 877, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 607, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at 0x1348d8610>:
Error while saving session data for 'tools' -> <chimerax.core.tools.Tools
object at 0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at
0x1348d8610>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 281, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/seq-view/tool.py", line 695, in take_snapshot  
'ToolInstance': ToolInstance.take_snapshot(self, session, flags),  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/tools.py", line 96, in take_snapshot  
data['shown'] = self.tool_window.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 1983, in shown  
return self.__toolkit.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2267, in shown  
return not self.dock_widget.isHidden()  
RuntimeError: wrapped C/C++ object of type QDockWidget has been deleted  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 260, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 284, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x10ad08b80> -> <chimerax.seq-
view.tool.SequenceViewer object at 0x1348d8610>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/dialog.py", line 116, in <lambda>  
lambda *args, ses=session: show_save_file_dialog(ses), tool_tip="Save output
file",  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/dialog.py", line 127, in show_save_file_dialog  
_dlg.display(session, **kw)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/dialog.py", line 51, in display  
run(session, cmd)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/run.py", line 36, in run  
results = command.run(text, log=log, return_json=return_json)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/cli.py", line 2852, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/cmd.py", line 75, in cmd_save  
Command(session, registry=registry).run(provider_cmd_text, log=log)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/cli.py", line 2852, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/cmd.py", line 87, in provider_save  
provider_info.bundle_info.run_provider(session, provider_info.format_name,  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core_formats/__init__.py", line 79, in save  
return cxs_save(session, path, **kw)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 877, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 607, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at 0x1348d8610>:
Error while saving session data for 'tools' -> <chimerax.core.tools.Tools
object at 0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at
0x1348d8610>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
  
See log for complete Python traceback.  
  

> save /Users/jeffmugridge/Documents/RESEARCH/Projects-Trmt1/mpro-aligns.cxs

Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 281, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/seq-view/tool.py", line 695, in take_snapshot  
'ToolInstance': ToolInstance.take_snapshot(self, session, flags),  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/tools.py", line 96, in take_snapshot  
data['shown'] = self.tool_window.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 1983, in shown  
return self.__toolkit.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2267, in shown  
return not self.dock_widget.isHidden()  
RuntimeError: wrapped C/C++ object of type QDockWidget has been deleted  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 260, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 284, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x10ad08b80> -> <chimerax.seq-
view.tool.SequenceViewer object at 0x1348d8610>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 877, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 607, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at 0x1348d8610>:
Error while saving session data for 'tools' -> <chimerax.core.tools.Tools
object at 0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at
0x1348d8610>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 281, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/seq-view/tool.py", line 695, in take_snapshot  
'ToolInstance': ToolInstance.take_snapshot(self, session, flags),  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/tools.py", line 96, in take_snapshot  
data['shown'] = self.tool_window.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 1983, in shown  
return self.__toolkit.shown  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/ui/gui.py", line 2267, in shown  
return not self.dock_widget.isHidden()  
RuntimeError: wrapped C/C++ object of type QDockWidget has been deleted  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 260, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 284, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x10ad08b80> -> <chimerax.seq-
view.tool.SequenceViewer object at 0x1348d8610>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/dialog.py", line 116, in <lambda>  
lambda *args, ses=session: show_save_file_dialog(ses), tool_tip="Save output
file",  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/dialog.py", line 127, in show_save_file_dialog  
_dlg.display(session, **kw)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/dialog.py", line 51, in display  
run(session, cmd)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/run.py", line 36, in run  
results = command.run(text, log=log, return_json=return_json)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/cli.py", line 2852, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/cmd.py", line 75, in cmd_save  
Command(session, registry=registry).run(provider_cmd_text, log=log)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/commands/cli.py", line 2852, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/save_command/cmd.py", line 87, in provider_save  
provider_info.bundle_info.run_provider(session, provider_info.format_name,  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core_formats/__init__.py", line 79, in save  
return cxs_save(session, path, **kw)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 877, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 607, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at 0x1348d8610>:
Error while saving session data for 'tools' -> <chimerax.core.tools.Tools
object at 0x10ad08b80> -> <chimerax.seq-view.tool.SequenceViewer object at
0x1348d8610>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX-1.2.5.app/Contents/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-
packages/chimerax/core/session.py", line 262, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 INTEL-12.10.25
OpenGL renderer: Intel(R) UHD Graphics 617
OpenGL vendor: Intel Inc.Hardware:

    Hardware Overview:

      Model Name: MacBook Air
      Model Identifier: MacBookAir8,1
      Processor Name: Intel Core i5
      Processor Speed: 1.6 GHz
      Number of Processors: 1
      Total Number of Cores: 2
      L2 Cache (per Core): 256 KB
      L3 Cache: 4 MB
      Hyper-Threading Technology: Enabled
      Memory: 8 GB
      Boot ROM Version: 1554.60.15.0.0 (iBridge: 18.16.13030.0.0,0)

Software:

    System Software Overview:

      System Version: macOS 10.14.6 (18G7016)
      Kernel Version: Darwin 18.7.0
      Time since boot: 72 days 2:05

Graphics/Displays:

    Intel UHD Graphics 617:

      Chipset Model: Intel UHD Graphics 617
      Type: GPU
      Bus: Built-In
      VRAM (Dynamic, Max): 1536 MB
      Vendor: Intel
      Device ID: 0x87c0
      Revision ID: 0x0002
      Metal: Supported, feature set macOS GPUFamily2 v1
      Displays:
        DELL P2719HC:
          Resolution: 1920 x 1080 (1080p FHD - Full High Definition)
          UI Looks like: 1920 x 1080 @ 60 Hz
          Framebuffer Depth: 30-Bit Color (ARGB2101010)
          Display Serial Number: GGG1NS2     
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Rotation: Supported
          Automatically Adjust Brightness: No
          Connection Type: DisplayPort

Locale: (None, 'UTF-8')
PyQt5 5.15.2, Qt 5.15.2
Installed Packages:
    alabaster: 0.7.12
    appdirs: 1.4.4
    appnope: 0.1.2
    Babel: 2.9.1
    backcall: 0.2.0
    blockdiag: 2.0.1
    certifi: 2020.12.5
    cftime: 1.5.0
    chardet: 3.0.4
    ChimeraX-AddCharge: 1.0.1
    ChimeraX-AddH: 2.1.6
    ChimeraX-AlignmentAlgorithms: 2.0
    ChimeraX-AlignmentHdrs: 3.2
    ChimeraX-AlignmentMatrices: 2.0
    ChimeraX-Alignments: 2.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.0
    ChimeraX-Atomic: 1.13.2
    ChimeraX-AtomicLibrary: 3.1.3
    ChimeraX-AtomSearch: 2.0
    ChimeraX-AtomSearchLibrary: 1.0
    ChimeraX-AxesPlanes: 2.0
    ChimeraX-BasicActions: 1.1
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 1.1
    ChimeraX-BondRot: 2.0
    ChimeraX-BugReporter: 1.0
    ChimeraX-BuildStructure: 2.5.2
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.1
    ChimeraX-ButtonPanel: 1.0
    ChimeraX-CageBuilder: 1.0
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.1
    ChimeraX-ChemGroup: 2.0
    ChimeraX-Clashes: 2.1
    ChimeraX-ColorActions: 1.0
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.2.1
    ChimeraX-CommandLine: 1.1.4
    ChimeraX-ConnectStructure: 2.0
    ChimeraX-Contacts: 1.0
    ChimeraX-Core: 1.2.5
    ChimeraX-CoreFormats: 1.0
    ChimeraX-coulombic: 1.1.1
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0
    ChimeraX-DataFormats: 1.1
    ChimeraX-Dicom: 1.0
    ChimeraX-DistMonitor: 1.1.3
    ChimeraX-DistUI: 1.0
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ExperimentalCommands: 1.0
    ChimeraX-FileHistory: 1.0
    ChimeraX-FunctionKey: 1.0
    ChimeraX-Geometry: 1.1
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.0
    ChimeraX-Hbonds: 2.1
    ChimeraX-Help: 1.1
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.0
    ChimeraX-ImageFormats: 1.1
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
    ChimeraX-Label: 1.0
    ChimeraX-ListInfo: 1.1.1
    ChimeraX-Log: 1.1.2
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.8.1
    ChimeraX-Map: 1.0.2
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0
    ChimeraX-MapFilter: 2.0
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.0
    ChimeraX-Markers: 1.0
    ChimeraX-Mask: 1.0
    ChimeraX-MatchMaker: 1.2.1
    ChimeraX-MDcrds: 2.2
    ChimeraX-MedicalToolbar: 1.0.1
    ChimeraX-Meeting: 1.0
    ChimeraX-MLP: 1.1
    ChimeraX-mmCIF: 2.3
    ChimeraX-MMTF: 2.1
    ChimeraX-Modeller: 1.0.1
    ChimeraX-ModelPanel: 1.0.1
    ChimeraX-ModelSeries: 1.0
    ChimeraX-Mol2: 2.0
    ChimeraX-Morph: 1.0
    ChimeraX-MouseModes: 1.1
    ChimeraX-Movie: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nucleotides: 2.0.1
    ChimeraX-OpenCommand: 1.5
    ChimeraX-PDB: 2.4.1
    ChimeraX-PDBBio: 1.0
    ChimeraX-PDBLibrary: 1.0.1
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.0.1
    ChimeraX-PubChem: 2.0.1
    ChimeraX-ReadPbonds: 1.0
    ChimeraX-Registration: 1.1
    ChimeraX-RemoteControl: 1.0
    ChimeraX-ResidueFit: 1.0
    ChimeraX-RestServer: 1.1
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 2.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.4
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0
    ChimeraX-SeqView: 2.3
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0
    ChimeraX-Shortcuts: 1.0
    ChimeraX-ShowAttr: 1.0
    ChimeraX-ShowSequences: 1.0
    ChimeraX-SideView: 1.0
    ChimeraX-Smiles: 2.0.1
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.3.1
    ChimeraX-STL: 1.0
    ChimeraX-Storm: 1.0
    ChimeraX-Struts: 1.0
    ChimeraX-Surface: 1.0
    ChimeraX-SwapAA: 2.0
    ChimeraX-SwapRes: 2.1
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.0.1
    ChimeraX-ToolshedUtils: 1.2
    ChimeraX-Tug: 1.0
    ChimeraX-UI: 1.7.6
    ChimeraX-uniprot: 2.1
    ChimeraX-UnitCell: 1.0
    ChimeraX-ViewDockX: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0
    ChimeraX-WebServices: 1.0
    ChimeraX-Zone: 1.0
    colorama: 0.4.3
    comtypes: 1.1.7
    cxservices: 1.0
    cycler: 0.10.0
    Cython: 0.29.21
    decorator: 5.0.9
    distlib: 0.3.1
    docutils: 0.16
    filelock: 3.0.12
    funcparserlib: 0.3.6
    grako: 3.16.5
    h5py: 2.10.0
    html2text: 2020.1.16
    idna: 2.10
    ihm: 0.17
    imagecodecs: 2020.5.30
    imagesize: 1.2.0
    ipykernel: 5.3.4
    ipython: 7.18.1
    ipython-genutils: 0.2.0
    jedi: 0.17.2
    Jinja2: 2.11.2
    jupyter-client: 6.1.7
    jupyter-core: 4.7.1
    kiwisolver: 1.3.1
    line-profiler: 2.1.2
    lxml: 4.6.2
    lz4: 3.1.0
    MarkupSafe: 2.0.1
    matplotlib: 3.3.2
    matplotlib-inline: 0.1.2
    msgpack: 1.0.0
    netCDF4: 1.5.4
    networkx: 2.5
    numexpr: 2.7.3
    numpy: 1.19.2
    numpydoc: 1.1.0
    openvr: 1.14.1501
    packaging: 20.9
    ParmEd: 3.2.0
    parso: 0.7.1
    pexpect: 4.8.0
    pickleshare: 0.7.5
    Pillow: 7.2.0
    pip: 21.0.1
    pkginfo: 1.5.0.1
    prompt-toolkit: 3.0.18
    psutil: 5.7.2
    ptyprocess: 0.7.0
    pycollada: 0.7.1
    pydicom: 2.0.0
    Pygments: 2.7.1
    PyOpenGL: 3.1.5
    PyOpenGL-accelerate: 3.1.5
    pyparsing: 2.4.7
    PyQt5-commercial: 5.15.2
    PyQt5-sip: 12.8.1
    PyQtWebEngine-commercial: 5.15.2
    python-dateutil: 2.8.1
    pytz: 2021.1
    pyzmq: 22.0.3
    qtconsole: 4.7.7
    QtPy: 1.9.0
    RandomWords: 0.3.0
    requests: 2.24.0
    scipy: 1.5.2
    setuptools: 50.3.2
    sfftk-rw: 0.6.7.dev1
    six: 1.15.0
    snowballstemmer: 2.1.0
    sortedcontainers: 2.2.2
    Sphinx: 3.2.1
    sphinxcontrib-applehelp: 1.0.2
    sphinxcontrib-blockdiag: 2.0.0
    sphinxcontrib-devhelp: 1.0.2
    sphinxcontrib-htmlhelp: 2.0.0
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 1.0.3
    sphinxcontrib-serializinghtml: 1.1.5
    suds-jurko: 0.6
    tables: 3.6.1
    tifffile: 2020.9.3
    tinyarray: 1.2.3
    tornado: 6.1
    traitlets: 5.0.5
    urllib3: 1.25.11
    wcwidth: 0.2.5
    webcolors: 1.11.1
    wheel: 0.36.0
    wheel-filename: 1.3.0

[Tom Goddard]

This bug was fixed 2 months ago, but is only in the ChimeraX daily build, not the 1.2.5 release that you are using.

What likely happened is that a ChimeraX sequence panel was shown, then an external screen was unplugged from the computer and ChimeraX moved to the laptop screen, then the Sequence panel was closed, but closing it produced an error because it was originally created on a different no longer connected screen. The result is the Sequence panel only got halfway closed. When you tried to save a session it tried to save that half-closed Sequence panel which produced the error when saving. This is a rare set of steps to produce the error but surprisingly you are the third person to report it. First reported in ticket #4583.