pb_scene_coord: Cannot multiply Place times "None"

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Windows-10-10.0.18362
ChimeraX Version: 0.93 (2020-04-03)
Description
(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: 0.93 (2020-04-03)  
© 2016-2020 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  
Downloading bundle ChimeraX_Maestro-1.5-py3-none-any.whl  
Successfully installed ChimeraX-Maestro-1.5  
Installed ChimeraX-Maestro (1.5)  
Downloading bundle ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
Downloading bundle ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
Downloading bundle ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
Error parsing
C:/Users/emart/Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl: No
such file:
C:\Users\emart\Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
File saved as
C:/Users/emart/Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
Error parsing
C:/Users/emart/Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl: No
such file:
C:\Users\emart\Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
File saved as
C:/Users/emart/Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
Error parsing
C:/Users/emart/Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl: No
such file:
C:\Users\emart\Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
File saved as
C:/Users/emart/Downloads\ChimeraX_ISOLDE-1.0b5-cp37-cp37m-win_amd64.whl  
Downloading bundle ChimeraX_Clipper-0.12.1-cp37-cp37m-win_amd64.whl  
Successfully installed ChimeraX-Clipper-0.12.1  
Installed ChimeraX-Clipper (0.12.1)  

'clip' is a prefix of an existing command 'clipper'  

Downloading bundle MolecularDynamicsViewer-1.1-py3-none-any.whl  
Successfully installed MolecularDynamicsViewer-1.1  
Installed MolecularDynamicsViewer (1.1)  

'clip' is a prefix of an existing command 'clipper'  

Downloading bundle ChimeraX_Cytoscape-0.1-py3-none-any.whl  
Successfully installed ChimeraX-Cytoscape-0.1  
Installed ChimeraX-Cytoscape (0.1)  

'clip' is a prefix of an existing command 'clipper'  

Downloading bundle ChimeraX_Stringdb-0.1-py3-none-any.whl  
Successfully installed ChimeraX-Stringdb-0.1  
Installed ChimeraX-Stringdb (0.1)  

'clip' is a prefix of an existing command 'clipper'  

> help help:quickstart

> set bgColor #ffffff00

> distance style decimalPlaces 1

> toolshed show "Basic Actions"

> open2 D:/MartisEA/cdcc/PP_docking/WT/for_MD/lig_09.pdb
> D:/MartisEA/cdcc/PP_docking/WT/for_MD/rec.pdb

Summary of feedback from opening <_io.textiowrapper
name="D:/MartisEA/cdcc/PP_docking/WT/for_MD/rec.pdb" mode="rt"
encoding="utf-8">  
---  
warning | Ignored bad PDB record found on line 2  
REMARK original generated coordinate pdb file  
  
Chain information for lig_09.pdb #1  
---  
Chain | Description  
A | No description available  
  
Chain information for rec.pdb #2  
---  
Chain | Description  
A | No description available  
  

> sequence chain #2/A

Alignment identifier is 2.A  

> select #1

331 atoms, 333 bonds, 1 model selected  

> show sel atoms

> hide #1 models

> hide #2 models

> show #2 models

> hide sel atoms

> show sel atoms

> show #1 models

> ~select #1

Nothing selected  

> select #2

1029 atoms, 1044 bonds, 1 model selected  

> show sel atoms

> select #1

331 atoms, 333 bonds, 1 model selected  

> ~select #1

Nothing selected  

> style ball

Changed 1360 atom styles  

> select #2/A

1029 atoms, 1044 bonds, 1 model selected  

> style sel ball

Changed 1029 atom styles  

> preset "initial styles" cartoon

Preset implemented in Python; no expansion to individual ChimeraX commands
available.  

> show sel atoms

> ~select #2

Nothing selected  

> select #1

331 atoms, 333 bonds, 1 model selected  

> show sel atoms

> toolshed show H-Bonds

> hbonds sel color #ffff00

46 hydrogen bonds found  
Traceback (most recent call last):  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\core\triggerset.py", line
130, in invoke  
return self._func(self._name, data)  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\pbgroup.py", line 63,
in pbg_update  
self._update_graphics()  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\pbgroup.py", line 218,
in _update_graphics  
d.positions = self._update_positions(pbonds, bond_atoms)  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\pbgroup.py", line 231,
in _update_positions  
axyz0, axyz1 = to_pbg*ba1.pb_scene_coords, to_pbg*ba2.pb_scene_coords  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\molarray.py", line
749, in pb_scene_coords  
v[i] = a.pb_scene_coord  
File "cymol.pyx", line 242, in
chimerax.atomic.cymol.CyAtom.pb_scene_coord.__get__  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\geometry\place.py", line 122,
in __mul__  
raise TypeError('Cannot multiply Place times "%s"' % str(p))  
TypeError: Cannot multiply Place times "None"  
  
Error processing trigger "changes":  
TypeError: Cannot multiply Place times "None"  
  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\geometry\place.py", line 122,
in __mul__  
raise TypeError('Cannot multiply Place times "%s"' % str(p))  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\core\triggerset.py", line
130, in invoke  
return self._func(self._name, data)  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\pbgroup.py", line 185,
in _update_graphics_if_needed  
self._update_graphics(gc)  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\pbgroup.py", line 218,
in _update_graphics  
d.positions = self._update_positions(pbonds, bond_atoms)  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\pbgroup.py", line 231,
in _update_positions  
axyz0, axyz1 = to_pbg*ba1.pb_scene_coords, to_pbg*ba2.pb_scene_coords  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\atomic\molarray.py", line
749, in pb_scene_coords  
v[i] = a.pb_scene_coord  
File "cymol.pyx", line 242, in
chimerax.atomic.cymol.CyAtom.pb_scene_coord.__get__  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\geometry\place.py", line 122,
in __mul__  
raise TypeError('Cannot multiply Place times "%s"' % str(p))  
TypeError: Cannot multiply Place times "None"  
  
Error processing trigger "graphics update":  
TypeError: Cannot multiply Place times "None"  
  
File "C:\ChimeraX\bin\lib\site-packages\chimerax\geometry\place.py", line 122,
in __mul__  
raise TypeError('Cannot multiply Place times "%s"' % str(p))  
  
See log for complete Python traceback.  
  




OpenGL version: 3.3.13560 Core Profile Forward-Compatible Context 26.20.11026.12001
OpenGL renderer: AMD Radeon(TM) R4 Graphics
OpenGL vendor: ATI Technologies Inc.
Manufacturer: LENOVO
Model: 81N3
OS: Microsoft Windows 10 Home Single Language (Build 18363)
Memory: 3,120,537,600
MaxProcessMemory: 137,438,953,344
CPU: 1 AMD A6-9225 RADEON R4, 5 COMPUTE CORES 2C+3G   "