Unknown crash after MatchMaker completion

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        Windows-10-10.0.19043
ChimeraX Version: 1.3rc202111110135 (2021-11-11 01:35:07 UTC)
Description
Last time you used ChimeraX it crashed.
Please describe steps that led to the crash here.
Windows fatal exception: access violation

Thread 0x000012b8 (most recent call first):
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\threading.py", line 316 in wait
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\threading.py", line 574 in wait
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\threading.py", line 1284 in run
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\threading.py", line 973 in _bootstrap_inner
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\threading.py", line 930 in _bootstrap

Current thread 0x00004a10 (most recent call first):
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\site-packages\chimerax\ui\gui.py", line 301 in event_loop
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\site-packages\ChimeraX_main.py", line 867 in init
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\site-packages\ChimeraX_main.py", line 1018 in 
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\runpy.py", line 87 in _run_code
  File "C:\Program Files\ChimeraX 1.3rc202111110135\bin\lib\runpy.py", line 197 in _run_module_as_main
===== Log before crash start =====
UCSF ChimeraX version: 1.3rc202111110135 (2021-11-11)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open "C:/Users/vero1/Documents/HFU/6. Semester/Structural Biology/5ciz.pdb"

Non-standard residues in 5ciz.pdb #1  
---  
CMP — adenosine-3',5'-cyclic-monophosphate (cyclic amp; camp)  
  

> set bgColor black

> open "C:/Users/vero1/Documents/HFU/6. Semester/Structural Biology/CAP.cxs"
> "C:/Users/vero1/Documents/HFU/6. Semester/Structural Biology/CAPstern.pdb"

CAPstern.pdb title:  
A structural model of cap mutant (T127L and S128I) In the apo state [more
info...]  
  
Chain information for CAPstern.pdb  
---  
Chain | Description | UniProt  
2.1/A 2.2/A 2.3/A 2.4/A 2.5/A 2.6/A 2.7/A 2.8/A 2.9/A 2.10/A 2.11/A 2.12/A
2.13/A 2.14/A 2.15/A 2.16/A 2.17/A 2.18/A 2.19/A 2.20/A | camp-activated
global transcriptional regulator CRP | CRP_ECOLI  
  
opened ChimeraX session  

> open "C:/Users/vero1/Documents/HFU/6. Semester/Structural Biology/5ciz.pdb"

Non-standard residues in 5ciz.pdb #3  
---  
CMP — adenosine-3',5'-cyclic-monophosphate (cyclic amp; camp)  
  

> ui tool show Matchmaker

> matchmaker #2.20 to #1.20

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 CAP.pdb, chain A (#1.20) with CAPstern.pdb, chain A (#2.20),
sequence alignment score = 865.8  
RMSD between 93 pruned atom pairs is 1.068 angstroms; (across all 209 pairs:
3.805)  
  


===== Log before crash end =====

Log:
UCSF ChimeraX version: 1.3rc202111110135 (2021-11-11)  
© 2016-2021 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  




OpenGL version: 3.3.0 - Build 20.19.15.4380
OpenGL renderer: Intel(R) HD Graphics 515
OpenGL vendor: Intel
Manufacturer: LENOVO
Model: 80ML
OS: Microsoft Windows 10 Home (Build 19043)
Memory: 8,498,610,176
MaxProcessMemory: 137,438,953,344
CPU: 4 Intel(R) Core(TM) m7-6Y75 CPU @ 1.20GHz
OSLanguage: de-DE
Locale: ('de_DE', 'cp1252')
PyQt5 5.15.2, Qt 5.15.2
Installed Packages:
    alabaster: 0.7.12
    appdirs: 1.4.4
    Babel: 2.9.1
    backcall: 0.2.0
    blockdiag: 2.0.1
    certifi: 2021.10.8
    cftime: 1.5.1.1
    charset-normalizer: 2.0.7
    ChimeraX-AddCharge: 1.1.5
    ChimeraX-AddH: 2.1.10
    ChimeraX-AlignmentAlgorithms: 2.0
    ChimeraX-AlignmentHdrs: 3.2
    ChimeraX-AlignmentMatrices: 2.0
    ChimeraX-Alignments: 2.2.3
    ChimeraX-AlphaFold: 1.0
    ChimeraX-AltlocExplorer: 1.0.1
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Arrays: 1.0
    ChimeraX-Atomic: 1.30.2
    ChimeraX-AtomicLibrary: 4.1.5
    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: 2.2.2
    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: 1.3rc202111110135
    ChimeraX-CoreFormats: 1.1
    ChimeraX-coulombic: 1.3.1
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0
    ChimeraX-DataFormats: 1.2.2
    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: 2.1.2
    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: 2.0.4
    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: 1.2.6
    ChimeraX-ModelPanel: 1.2.1
    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: 2.0.2
    ChimeraX-OpenCommand: 1.7
    ChimeraX-PDB: 2.6.5
    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: 2.0.1
    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: 2.4.6
    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: 1.13.7
    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
    comtypes: 1.1.10
    cxservices: 1.1
    cycler: 0.11.0
    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: 3.5.0
    html2text: 2020.1.16
    idna: 3.3
    ihm: 0.21
    imagecodecs: 2021.4.28
    imagesize: 1.3.0
    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: 4.9.1
    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: 21.2
    ParmEd: 3.2.0
    parso: 0.8.2
    pickleshare: 0.7.5
    Pillow: 8.3.2
    pip: 21.2.4
    pkginfo: 1.7.1
    prompt-toolkit: 3.0.22
    psutil: 5.8.0
    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: 2021.3
    pywin32: 228
    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
    tables: 3.6.1
    tifffile: 2021.4.8
    tinyarray: 1.2.3
    tornado: 6.1
    traitlets: 5.1.1
    urllib3: 1.26.7
    wcwidth: 0.2.5
    webcolors: 1.11.1
    wheel: 0.37.0
    wheel-filename: 1.3.0
    WMI: 1.5.1

[Tom Goddard]

This is a very interesting crash in the Qt event loop because all they did was open two PDB files and run matchmaker. Maybe the crash has nothing to do with what the did in ChimeraX, and depends just on some system weirdness, like disconnecting an external display. But if it is a bug in our code than PDB reading and matchmaker would be where to look.

[pett]

Another mystery is that opening 5ciz.pdb produces no chain table (and at least the standard 5CIZ entry is just one model) and yet the command "matchmaker #2.20 to #1.20" works.

[Tom Goddard]

Model #1 comes from a .cxs session file. Model 5ciz.pdb is #3 and is not being used in the matchmaker command. But it does seem odd that the 5ciz.pdb they open before opening the session does not produce a chain table.