Cannot save session in today's daily build if blastprotein was used

[fred.mast@…]

The following bug report has been submitted:
Platform:        macOS-10.16-x86_64-i386-64bit
ChimeraX Version: 1.3.dev202109290359 (2021-09-29 03:59:25 UTC)
Description
Mapping alphafold sequences to existing structures.(Describe the actions that caused this problem to occur here)

Log:
Startup Messages  
---  
note | available bundle cache has not been initialized yet  
  
UCSF ChimeraX version: 1.3.dev202109290359 (2021-09-29)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open /Users/fredmast/Downloads/3ajb.pdb

3ajb.pdb title:  
Crystal structure of human PEX3P In complex with N-terminal PEX19P peptide
[more info...]  
  
Chain information for 3ajb.pdb #1  
---  
Chain | Description | UniProt  
A | peroxisomal biogenesis factor 3 | Q6FGP5_HUMAN  
B | peroxisomal biogenesis factor 19 | PEX19_HUMAN  
  

> ui tool show AlphaFold

> alphafold match #1/A

1 UniProt id does not have an AlphaFold database model: Q6FGP5 (chain A)  

Fetching compressed AlphaFold P56589 from
https://alphafold.ebi.ac.uk/files/AF-P56589-F1-model_v1.cif  
1 AlphaFold model found using sequence similarity searches: P56589 (chain A)  
AlphaFold chains matching 3ajb.pdb  
---  
Chain| UniProt Name| UniProt Id| RMSD| Length| Seen| % Id  
A | PEX3_HUMAN | P56589 | 1.06 | 317 | 293 | 100  
  
Opened 1 AlphaFold model  

> alphafold search #1/A

ChimeraX REST job id: job_lfy9v_84  
BlastProtein finished.  
Parsing BLAST results.  

> alphafold fetch PEX3_MOUSE alignTo #1/A

Fetching compressed AlphaFold Q9QXY9 from
https://alphafold.ebi.ac.uk/files/AF-Q9QXY9-F1-model_v1.cif  
AlphaFold chains matching chain A  
---  
Chain| UniProt Name| UniProt Id| RMSD| Length| Seen| % Id  
A | PEX3_MOUSE | Q9QXY9 | 1.13 | 316 | 293 | 94  
  

> alphafold match #1/B

Fetching compressed AlphaFold P40855 from
https://alphafold.ebi.ac.uk/files/AF-P40855-F1-model_v1.cif  
1 AlphaFold model found using UniProt identifier: P40855 (chain B)  
AlphaFold chains matching 3ajb.pdb  
---  
Chain| UniProt Name| UniProt Id| RMSD| Length| Seen| % Id  
B | PEX19_HUMAN | P40855 | 2.87 | 44 | 26 | 100  
  
Opened 1 AlphaFold model  

> alphafold search #1/B

ChimeraX REST job id: job_5t1pm7y6  
BlastProtein finished.  
Parsing BLAST results.  

> alphafold fetch PEX3_DICDI alignTo #1/A

Fetching compressed AlphaFold Q54U86 from
https://alphafold.ebi.ac.uk/files/AF-Q54U86-F1-model_v1.cif  
AlphaFold chains matching chain A  
---  
Chain| UniProt Name| UniProt Id| RMSD| Length| Seen| % Id  
A | PEX3_DICDI | Q54U86 | 4.51 | 337 | 293 | 23  
  

> save /Users/fredmast/210929_HsPex3_alphafold.cxs

Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 283, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/blastprotein/results.py", line 348, in take_snapshot  
, 'tool_name': self.tool_instance_name  
AttributeError: 'BlastProteinResults' object has no attribute
'tool_instance_name'  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 262, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 286, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 890, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 619, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x7fbba8184430> -> <chimerax.blastprotein.results.BlastProteinResults object
at 0x7fbb9e884bb0>: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, 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_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 283, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/blastprotein/results.py", line 348, in take_snapshot  
, 'tool_name': self.tool_instance_name  
AttributeError: 'BlastProteinResults' object has no attribute
'tool_instance_name'  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 262, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 286, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/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_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/save_command/dialog.py", line 127, in show_save_file_dialog  
_dlg.display(session, **kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/save_command/dialog.py", line 51, in display  
run(session, cmd)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/run.py", line 36, in run  
results = command.run(text, log=log, return_json=return_json)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/cli.py", line 2856, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/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_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/cli.py", line 2856, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/save_command/cmd.py", line 89, in provider_save  
saver_info.save(session, path, **provider_kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core_formats/__init__.py", line 84, in save  
return cxs_save(session, path, **kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 890, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 619, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x7fbba8184430> -> <chimerax.blastprotein.results.BlastProteinResults object
at 0x7fbb9e884bb0>: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
  
See log for complete Python traceback.  
  

> cd /Users/fredmast/Dropbox

Current working directory is: /Users/fredmast/Dropbox  

> save /Users/fredmast/Dropbox/210929_HsPex3.cxs

Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 283, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/blastprotein/results.py", line 348, in take_snapshot  
, 'tool_name': self.tool_instance_name  
AttributeError: 'BlastProteinResults' object has no attribute
'tool_instance_name'  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 262, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 286, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 890, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 619, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x7fbba8184430> -> <chimerax.blastprotein.results.BlastProteinResults object
at 0x7fbb9e884bb0>: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, 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_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 283, in process  
data = sm.take_snapshot(obj, session, self.state_flags)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/blastprotein/results.py", line 348, in take_snapshot  
, 'tool_name': self.tool_instance_name  
AttributeError: 'BlastProteinResults' object has no attribute
'tool_instance_name'  
  
The above exception was the direct cause of the following exception:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 262, in discovery  
self.processed[key] = self.process(obj, parents)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 286, in process  
raise RuntimeError(msg) from e  
RuntimeError: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
During handling of the above exception, another exception occurred:  
  
Traceback (most recent call last):  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/toolbar/tool.py", line 165, in callback  
bundle_info.run_provider(session, name, session.toolbar,
display_name=display_name)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/toolshed/info.py", line 381, in run_provider  
return api._api_caller.run_provider(api, session, name, mgr, **kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/toolshed/__init__.py", line 1283, in run_provider  
return cls._get_func(api, "run_provider")(session, name, mgr, **kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/toolbar/__init__.py", line 37, in run_provider  
providers.run_provider(session, name)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/toolbar/providers.py", line 45, in run_provider  
what(session)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/toolbar/providers.py", line 27, in _file_save  
show_save_file_dialog(session)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/save_command/dialog.py", line 127, in show_save_file_dialog  
_dlg.display(session, **kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/save_command/dialog.py", line 51, in display  
run(session, cmd)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/run.py", line 36, in run  
results = command.run(text, log=log, return_json=return_json)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/cli.py", line 2856, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/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_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/commands/cli.py", line 2856, in run  
result = ci.function(session, **kw_args)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/save_command/cmd.py", line 89, in provider_save  
saver_info.save(session, path, **provider_kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core_formats/__init__.py", line 84, in save  
return cxs_save(session, path, **kw)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 890, in save  
session.save(output, version=version, include_maps=include_maps)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 619, in save  
mgr.discovery(self._state_containers)  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
ValueError: error processing: 'tools' -> <chimerax.core.tools.Tools object at
0x7fbba8184430> -> <chimerax.blastprotein.results.BlastProteinResults object
at 0x7fbb9e884bb0>: Error while saving session data for 'tools' ->
<chimerax.core.tools.Tools object at 0x7fbba8184430> ->
<chimerax.blastprotein.results.BlastProteinResults object at 0x7fbb9e884bb0>  
  
ValueError: error processing: 'tools' -> -> : Error while saving session data
for 'tools' -> ->  
  
File
"/Applications/ChimeraX_Daily.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-
packages/chimerax/core/session.py", line 264, in discovery  
raise ValueError("error processing: %s: %s" % (_obj_stack(parents, obj), e))  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 ATI-4.6.20
OpenGL renderer: AMD Radeon Pro 560 OpenGL Engine
OpenGL vendor: ATI Technologies Inc.Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: MacBookPro14,3
      Processor Name: Quad-Core Intel Core i7
      Processor Speed: 3.1 GHz
      Number of Processors: 1
      Total Number of Cores: 4
      L2 Cache (per Core): 256 KB
      L3 Cache: 8 MB
      Hyper-Threading Technology: Enabled
      Memory: 16 GB
      System Firmware Version: 429.140.8.0.0
      SMC Version (system): 2.45f5

Software:

    System Software Overview:

      System Version: macOS 11.6 (20G165)
      Kernel Version: Darwin 20.6.0
      Time since boot: 10:34

Graphics/Displays:

    Intel HD Graphics 630:

      Chipset Model: Intel HD Graphics 630
      Type: GPU
      Bus: Built-In
      VRAM (Dynamic, Max): 1536 MB
      Vendor: Intel
      Device ID: 0x591b
      Revision ID: 0x0004
      Automatic Graphics Switching: Supported
      gMux Version: 4.0.29 [3.2.8]
      Metal Family: Supported, Metal GPUFamily macOS 2

    Radeon Pro 560:

      Chipset Model: Radeon Pro 560
      Type: GPU
      Bus: PCIe
      PCIe Lane Width: x8
      VRAM (Total): 4 GB
      Vendor: AMD (0x1002)
      Device ID: 0x67ef
      Revision ID: 0x00c0
      ROM Revision: 113-C980AJ-927
      VBIOS Version: 113-C9801AU-A02
      EFI Driver Version: 01.A0.927
      Automatic Graphics Switching: Supported
      gMux Version: 4.0.29 [3.2.8]
      Metal Family: Supported, Metal GPUFamily macOS 2
      Displays:
        Color LCD:
          Display Type: Built-In Retina LCD
          Resolution: 2880 x 1800 Retina
          Framebuffer Depth: 24-Bit Color (ARGB8888)
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Automatically Adjust Brightness: Yes
          Connection Type: Internal

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: 2021.5.30
    cftime: 1.5.1
    charset-normalizer: 2.0.6
    ChimeraX-AddCharge: 1.1.4
    ChimeraX-AddH: 2.1.10
    ChimeraX-AlignmentAlgorithms: 2.0
    ChimeraX-AlignmentHdrs: 3.2
    ChimeraX-AlignmentMatrices: 2.0
    ChimeraX-Alignments: 2.2.2
    ChimeraX-AlphaFold: 1.0
    ChimeraX-AltlocExplorer: 1.0.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.0
    ChimeraX-Atomic: 1.30.1
    ChimeraX-AtomicLibrary: 4.1.4
    ChimeraX-AtomSearch: 2.0
    ChimeraX-AtomSearchLibrary: 1.0
    ChimeraX-AxesPlanes: 2.0
    ChimeraX-BasicActions: 1.1
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 2.0
    ChimeraX-BondRot: 2.0
    ChimeraX-BugReporter: 1.0
    ChimeraX-BuildStructure: 2.6
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.1
    ChimeraX-ButtonPanel: 1.0
    ChimeraX-CageBuilder: 1.0
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.2
    ChimeraX-ChemGroup: 2.0
    ChimeraX-Clashes: 2.1
    ChimeraX-ColorActions: 1.0
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5
    ChimeraX-CommandLine: 1.1.5
    ChimeraX-ConnectStructure: 2.0
    ChimeraX-Contacts: 1.0
    ChimeraX-Core: 1.3.dev202109290359
    ChimeraX-CoreFormats: 1.1
    ChimeraX-coulombic: 1.3.1
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0
    ChimeraX-DataFormats: 1.2.1
    ChimeraX-Dicom: 1.0
    ChimeraX-DistMonitor: 1.1.5
    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: 1.1
    ChimeraX-Hbonds: 2.1.1
    ChimeraX-Help: 1.2
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.1
    ChimeraX-ItemsInspection: 1.0
    ChimeraX-Label: 1.1
    ChimeraX-ListInfo: 1.1.1
    ChimeraX-Log: 1.1.4
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.8.1
    ChimeraX-Map: 1.1
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0
    ChimeraX-MapFilter: 2.0
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1
    ChimeraX-Markers: 1.0
    ChimeraX-Mask: 1.0
    ChimeraX-MatchMaker: 2.0.1
    ChimeraX-MDcrds: 2.6
    ChimeraX-MedicalToolbar: 1.0.1
    ChimeraX-Meeting: 1.0
    ChimeraX-MLP: 1.1
    ChimeraX-mmCIF: 2.4
    ChimeraX-MMTF: 2.1
    ChimeraX-Modeller: 1.2
    ChimeraX-ModelPanel: 1.2
    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: 2.0.2
    ChimeraX-OpenCommand: 1.7
    ChimeraX-PDB: 2.6.3
    ChimeraX-PDBBio: 1.0
    ChimeraX-PDBLibrary: 1.0.2
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.0.1
    ChimeraX-PubChem: 2.1
    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: 1.5
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.4.4
    ChimeraX-Shape: 1.0.1
    ChimeraX-Shell: 1.0
    ChimeraX-Shortcuts: 1.1
    ChimeraX-ShowAttr: 1.0
    ChimeraX-ShowSequences: 1.0
    ChimeraX-SideView: 1.0
    ChimeraX-Smiles: 2.1
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.6
    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: 1.1
    ChimeraX-ToolshedUtils: 1.2
    ChimeraX-Tug: 1.0
    ChimeraX-UI: 1.13.1
    ChimeraX-uniprot: 2.2
    ChimeraX-UnitCell: 1.0
    ChimeraX-ViewDockX: 1.0.1
    ChimeraX-VIPERdb: 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: 0.4.4
    cxservices: 1.1
    cycler: 0.10.0
    Cython: 0.29.24
    decorator: 5.1.0
    docutils: 0.17.1
    filelock: 3.0.12
    funcparserlib: 0.3.6
    grako: 3.16.5
    h5py: 3.4.0
    html2text: 2020.1.16
    idna: 3.2
    ihm: 0.21
    imagecodecs: 2021.4.28
    imagesize: 1.2.0
    ipykernel: 5.5.5
    ipython: 7.23.1
    ipython-genutils: 0.2.0
    jedi: 0.18.0
    Jinja2: 3.0.1
    jupyter-client: 6.1.12
    jupyter-core: 4.8.1
    kiwisolver: 1.3.2
    lxml: 4.6.3
    lz4: 3.1.3
    MarkupSafe: 2.0.1
    matplotlib: 3.4.3
    matplotlib-inline: 0.1.3
    msgpack: 1.0.2
    netCDF4: 1.5.7
    networkx: 2.6.3
    numexpr: 2.7.3
    numpy: 1.21.2
    openvr: 1.16.801
    packaging: 21.0
    ParmEd: 3.2.0
    parso: 0.8.2
    pexpect: 4.8.0
    pickleshare: 0.7.5
    Pillow: 8.3.2
    pip: 21.2.4
    pkginfo: 1.7.1
    prompt-toolkit: 3.0.20
    psutil: 5.8.0
    ptyprocess: 0.7.0
    pycollada: 0.7.1
    pydicom: 2.1.2
    Pygments: 2.10.0
    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: 2.8.2
    pytz: 2021.1
    pyzmq: 22.3.0
    qtconsole: 5.1.1
    QtPy: 1.11.2
    RandomWords: 0.3.0
    requests: 2.26.0
    scipy: 1.7.1
    setuptools: 57.5.0
    sfftk-rw: 0.7.1
    six: 1.16.0
    snowballstemmer: 2.1.0
    sortedcontainers: 2.4.0
    Sphinx: 4.2.0
    sphinx-autodoc-typehints: 1.12.0
    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
    tifffile: 2021.4.8
    tinyarray: 1.2.3
    tornado: 6.1
    traitlets: 5.1.0
    urllib3: 1.26.7
    wcwidth: 0.2.5
    webcolors: 1.11.1
    wheel: 0.37.0
    wheel-filename: 1.3.0

[Zach Pearson]

Tracebacks were caused by the same bad variable name as #5315; the problem preventing the sessions from being saved will be fixed in tomorrow's daily build.