glClear: invalid framebuffer operation on statusbar expose

[chimerax-bug-report@…]

The following bug report has been submitted:
Platform:        macOS-26.3-arm64-arm-64bit
ChimeraX Version: 1.11.1 (2026-01-23 05:51:34 UTC)
Description
Replace this text with list of actions that caused this problem to occur

Log:
> camera ortho

> cofr centerOfView

> volume defaultvalues limitVoxelCount false voxelLimitForPlane
> 1000000000000000 voxelLimitForOpen 1000000000000000 saveSettings true

Saved volume settings  

> mousemode rightMode clip

> mousemode alt rightMode "contour level"

> mousemode alt leftMode "translate selected models"

> mousemode shift leftMode "rotate selected models"

> alias cofron cofr centerofview showpivot true

> alias cofroff cofr centerofview showpivot false

> alias symclip cofr centerofview; clip near -$1 far $1 position cofr

> alias cootmode surface cap false; surface style solid; lighting flat;
> graphics silhouettes false; style stick; ~rib; color ##num_residues gold;
> color byhet ; disp; ~disp @H*; style solvent ball; size ballscale 0.1; size
> stickradius 0.07; transparency 70; cofr centerofview; clip near -10 far 10
> position cofr; color ##~num_residues cornflower blue

> alias cootmode_mesh surface cap false; surface style mesh; lighting flat;
> graphics silhouettes false; style stick; ~rib; color ##num_residues gold;
> color byhet ; disp; ~disp @H*; style solvent ball; size ballscale 0.1; size
> stickradius 0.07; cofr centerofview; clip near -10 far 10 position cofr;
> color ##~num_residues #3d60ffff; transparency 50

> alias ca_and_sidechains ~rib $1; ~surf $1; ~disp $1; disp @CA&protein&$1;
> disp @P&nucleic&$1; style $1 stick; disp sidechain&$1; disp
> ~backbone&nucleic&$1; size stickradius 0.1; size pseudobondradius 0.1

> alias ca_trace ~rib $1; ~surf $1; ~disp $1; disp @CA&protein&$1; disp
> @P&nucleic&$1; style $1 stick; size stickradius 0.1; size pseudobondradius
> 0.1

> alias map_sphere_15 surface unzone ##~num_residues; sel; close #10000;
> marker #10000 position cofr; sel ~sel; surface zone ##~num_residues
> nearAtoms sel distance 15; close #10000

> alias map_unsphere surface unzone ##~num_residues

> alias default_mol_display ~disp; rib; rainbow chain palette RdYlBu-5;
> lighting soft

> alias hidemaps surface unzone ##~num_residues; sel; close #10000; marker
> #10000 position cofr; sel ~sel; surface zone ##~num_residues nearAtoms sel
> distance 0; close #10000

> alias showmaps surface unzone ##~num_residues

> alias caps_off surface cap false

> alias caps_on surface cap true

> alias selbetween ks ri

> buttonpanel Shortcuts rows 3 columns 4

> buttonpanel Shortcuts add Vol_Viewer command "tool show 'Volume Viewer'"

> buttonpanel Shortcuts add Model_Panel command "tool show Models"

> buttonpanel Shortcuts add Log command "tool show Log"

> buttonpanel Shortcuts add default_disp command default_mol_display

> buttonpanel Shortcuts add map_sphere command map_sphere_15

> buttonpanel Shortcuts add map_unsphere command map_unsphere

> buttonpanel Shortcuts add cofron command cofron

> buttonpanel Shortcuts add cofroff command cofroff

> buttonpanel Shortcuts add cootmode command cootmode

> buttonpanel Shortcuts add mark_cofr command "marker #10000 position cofr"

> buttonpanel Shortcuts add hidemaps command hidemaps

> buttonpanel Shortcuts add showmaps command showmaps

> alias fatsidechain size sel stick 0.5;

> alias multishadow lighting multishadow 512;

> alias depthCue lighting depthCue true;

> alias silhouettes graphics silhouettes true;

> alias nucrib cartoon style nucleic xsect oval width 1.6 thick 1.6

> alias flatnuc cartoon style nucleic xsect rectangle width 2.0 thick 0.4

> alias cylinders cartoon style protein modeh tube rad 2 sides 24

> alias licorice car style protein modeh default arrows f xsect oval width 1
> thick 1

> alias colhist color /D,H #F4CACB; color /C,G #FFF104; color /A,E #6994CE;
> color /B,F #7FCA9C;

> alias coldna1 col /I-J #b9c8da;

> alias colfoxa1 col /O-P #00C8FA;

> alias colgata4 col /T #960084;

> alias stubs nucleotides stubs;

> alias fatprotein cartoon style protein width 3 thickness 1.5;

> alias mediumprotein cartoon style protein width 2.5 thickness 0.8;

> alias thinprotein cartoon style protein width 2.4 thickness 0.6;

> alias default-protein cartoon style protein width 2.2 thickness 0.4;

> alias wideribbon cartoon style protein width 2.5 thickness 0.4;

> alias fatnucrib cartoon style nucleic xsection oval width 2 thickness 2

> alias thinnucrib cartoon style nucleic xsect oval width 1.2 thick 1.2

> phenix location /Users/zhoub2/Applications/phenix-1.21.2-5419

phenix location is provided by the uninstalled bundle PhenixUI versions 1.0.3
– 1.4.12  
UCSF ChimeraX version: 1.11.1 (2026-01-23)  
© 2016-2025 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> ui tool show "AI Chat"

> open 7k5y format mmcif fromDatabase pdb

7k5y title:  
Cryo-EM structure of a chromatosome containing human linker histone H1.4 [more
info...]  
  
Chain information for 7k5y #1  
---  
Chain | Description | UniProt  
A E | Histone H3.1 | H31_HUMAN 0-135  
B F | Histone H4 | H4_HUMAN 0-102  
C G | Histone H2A type 1-B/E | H2A1B_HUMAN 0-129  
D H | Histone H2B type 1-J | H2B1J_HUMAN 0-125  
I | DNA (197-MER) |   
J | DNA (197-MER) |   
M N | scFv20 |   
U | Histone H1.4 | H14_HUMAN 0-218  
  
2242 atoms have anisotropic B-factors. Depict anisotropic information with
Thermal Ellipsoids [start tool...] or the aniso command.  
[AI Chat] Sending to API: color DNA in light grey, color protein in light
blue. hide chain M and N. show cartoon, hide atoms.  
[AI Chat] Received from API: error: HTTP 503 - {  
"error": {  
"code": 503,  
"message": "This model is currently experiencing high demand. Spikes in demand
are usually temporary. Please try again later.",  
"status": "UNAVAILABLE"  
}  
}  
  
[AI Chat] Sending to API: color DNA in light grey, color protein in light
blue. hide chain M and N. show cartoon, hide atoms.  
[AI Chat] Received from API: color nucleic light grey; color protein light
blue; hide /M,N; show cartoon; hide atoms  

> color nucleic light grey

> color protein light blue

> hide /M,N

> show cartoons

> hide atoms

> surface

> transparency 50

> background white

Unknown command: background white  
[AI Chat] Sending to API: use white background  
[AI Chat] Received from API: set bgColor white  

> set bgColor white

Traceback (most recent call last):  
File
"/Users/zhoub2/dev/Applications/ChimeraX-1.11.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 98, in _expose_event  
self.status(self._last_message, self._last_color)  
File
"/Users/zhoub2/dev/Applications/ChimeraX-1.11.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 164, in status  
r.draw_background()  
File
"/Users/zhoub2/dev/Applications/ChimeraX-1.11.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/opengl.py", line 1238, in draw_background  
GL.glClear(flags)  
File "src/errorchecker.pyx", line 59, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError  
OpenGL.error.GLError: GLError(  
err = 1286,  
description = b'invalid framebuffer operation',  
baseOperation = glClear,  
cArguments = (16640,)  
)  
  
OpenGL.error.GLError: GLError(  
err = 1286,  
description = b'invalid framebuffer operation',  
baseOperation = glClear,  
cArguments = (16640,)  
)  
  
File "src/errorchecker.pyx", line 59, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError  
  
See log for complete Python traceback.  
  
Traceback (most recent call last):  
File
"/Users/zhoub2/dev/Applications/ChimeraX-1.11.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 98, in _expose_event  
self.status(self._last_message, self._last_color)  
File
"/Users/zhoub2/dev/Applications/ChimeraX-1.11.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/ui/statusbar.py", line 164, in status  
r.draw_background()  
File
"/Users/zhoub2/dev/Applications/ChimeraX-1.11.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-
packages/chimerax/graphics/opengl.py", line 1238, in draw_background  
GL.glClear(flags)  
File "src/errorchecker.pyx", line 59, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError  
OpenGL.error.GLError: GLError(  
err = 1286,  
description = b'invalid framebuffer operation',  
baseOperation = glClear,  
cArguments = (16640,)  
)  
  
OpenGL.error.GLError: GLError(  
err = 1286,  
description = b'invalid framebuffer operation',  
baseOperation = glClear,  
cArguments = (16640,)  
)  
  
File "src/errorchecker.pyx", line 59, in
OpenGL_accelerate.errorchecker._ErrorChecker.glCheckError  
  
See log for complete Python traceback.  
  




OpenGL version: 4.1 Metal - 90.5
OpenGL renderer: Apple M3 Pro
OpenGL vendor: Apple

Python: 3.11.9
Locale: en_US.UTF-8
Qt version: PyQt6 6.9.1, Qt 6.9.0
Qt runtime version: 6.9.2
Qt platform: cocoa
Hardware:

    Hardware Overview:

      Model Name: MacBook Pro
      Model Identifier: Mac15,6
      Model Number: Z1AU00299LL/A
      Chip: Apple M3 Pro
      Total Number of Cores: 11 (5 Performance and 6 Efficiency)
      Memory: 18 GB
      System Firmware Version: 13822.81.10
      OS Loader Version: 13822.81.10

Software:

    System Software Overview:

      System Version: macOS 26.3 (25D125)
      Kernel Version: Darwin 25.3.0
      Time since boot: 8 hours, 12 minutes

Graphics/Displays:

    Apple M3 Pro:

      Chipset Model: Apple M3 Pro
      Type: GPU
      Bus: Built-In
      Total Number of Cores: 14
      Vendor: Apple (0x106b)
      Metal Support: Metal 4
      Displays:
        DELL U2720Q:
          Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition)
          UI Looks like: 1920 x 1080 @ 60.00Hz
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Rotation: Supported
        DELL P2715Q:
          Resolution: 3840 x 2160 (2160p/4K UHD 1 - Ultra High Definition)
          UI Looks like: 1920 x 1080 @ 30.00Hz
          Mirror: Off
          Online: Yes
          Rotation: Supported


Installed Packages:
    aiohappyeyeballs: 2.6.1
    aiohttp: 3.13.1
    aiosignal: 1.4.0
    alabaster: 1.0.0
    annotated-types: 0.7.0
    anyio: 4.12.1
    appdirs: 1.4.4
    appnope: 0.1.4
    asttokens: 3.0.1
    attrs: 25.4.0
    babel: 2.17.0
    beautifulsoup4: 4.13.5
    blockdiag: 3.0.0
    blosc2: 3.12.2
    build: 1.3.0
    certifi: 2025.7.14
    cftime: 1.6.5
    charset-normalizer: 3.4.4
    ChimeraX-AddCharge: 1.5.20
    ChimeraX-AddH: 2.2.8
    ChimeraX-AlignmentAlgorithms: 2.0.2
    ChimeraX-AlignmentHdrs: 3.6.1
    ChimeraX-AlignmentMatrices: 2.1
    ChimeraX-Alignments: 3.1.1
    ChimeraX-AlphaFold: 1.0.1
    ChimeraX-AltlocExplorer: 1.2
    ChimeraX-AmberInfo: 1.0
    ChimeraX-Animations: 1.0
    ChimeraX-Aniso: 1.3.2
    ChimeraX-Arrays: 1.1
    ChimeraX-Atomic: 1.61.4
    ChimeraX-AtomicLibrary: 14.2.1
    ChimeraX-AtomSearch: 2.0.1
    ChimeraX-AxesPlanes: 2.4
    ChimeraX-BasicActions: 1.1.3
    ChimeraX-BILD: 1.0
    ChimeraX-BlastProtein: 3.0.0
    ChimeraX-Boltz: 1.1
    ChimeraX-BondRot: 2.0.4
    ChimeraX-BugReporter: 1.0.2
    ChimeraX-BuildStructure: 2.13.1
    ChimeraX-Bumps: 1.0
    ChimeraX-BundleBuilder: 1.6.0
    ChimeraX-ButtonPanel: 1.0.1
    ChimeraX-CageBuilder: 1.0.1
    ChimeraX-CellPack: 1.0
    ChimeraX-Centroids: 1.4
    ChimeraX-ChangeChains: 1.1
    ChimeraX-Chat: 0.1.0
    ChimeraX-CheckWaters: 1.5
    ChimeraX-ChemGroup: 2.0.2
    ChimeraX-Clashes: 2.3
    ChimeraX-ColorActions: 1.0.5
    ChimeraX-ColorGlobe: 1.0
    ChimeraX-ColorKey: 1.5.8
    ChimeraX-CommandLine: 1.3.0
    ChimeraX-ConnectStructure: 2.0.1
    ChimeraX-Contacts: 1.0.1
    ChimeraX-Core: 1.11.1
    ChimeraX-CoreFormats: 1.2
    ChimeraX-coulombic: 1.4.5
    ChimeraX-Crosslinks: 1.0
    ChimeraX-Crystal: 1.0
    ChimeraX-CrystalContacts: 1.0.1
    ChimeraX-DataFormats: 1.2.4
    ChimeraX-Dicom: 1.2.7
    ChimeraX-DistMonitor: 1.4.2
    ChimeraX-DockPrep: 1.1.4
    ChimeraX-Dssp: 2.0
    ChimeraX-EMDB-SFF: 1.0
    ChimeraX-ESMFold: 1.0
    ChimeraX-FileHistory: 1.0.1
    ChimeraX-FunctionKey: 1.0.1
    ChimeraX-Geometry: 1.3
    ChimeraX-gltf: 1.0
    ChimeraX-Graphics: 1.4.1
    ChimeraX-Hbonds: 2.5.3
    ChimeraX-Help: 1.3
    ChimeraX-HKCage: 1.3
    ChimeraX-IHM: 1.1
    ChimeraX-ImageFormats: 1.2
    ChimeraX-IMOD: 1.0
    ChimeraX-IO: 1.0.4
    ChimeraX-ItemsInspection: 1.0.1
    ChimeraX-IUPAC: 1.0
    ChimeraX-KVFinder: 1.7.3
    ChimeraX-Label: 1.2
    ChimeraX-ListInfo: 1.2.2
    ChimeraX-Log: 1.2.2
    ChimeraX-LookingGlass: 1.1
    ChimeraX-Maestro: 1.9.2
    ChimeraX-Map: 1.3
    ChimeraX-MapData: 2.0
    ChimeraX-MapEraser: 1.0.1
    ChimeraX-MapFilter: 2.0.1
    ChimeraX-MapFit: 2.0
    ChimeraX-MapSeries: 2.1.1
    ChimeraX-Markers: 1.0.1
    ChimeraX-Mask: 1.0.2
    ChimeraX-MatchMaker: 2.2.2
    ChimeraX-MCopy: 1.0
    ChimeraX-MCPServer: 0.1.0
    ChimeraX-MDcrds: 2.17.2
    ChimeraX-MedicalToolbar: 1.1
    ChimeraX-Meeting: 1.0.1
    ChimeraX-Minimize: 1.3.2
    ChimeraX-MLP: 1.1.1
    ChimeraX-mmCIF: 2.16
    ChimeraX-MMTF: 2.2
    ChimeraX-ModelArchive: 1.0
    ChimeraX-Modeller: 1.5.22
    ChimeraX-ModelPanel: 1.6
    ChimeraX-ModelSeries: 1.0.1
    ChimeraX-Mol2: 2.0.3
    ChimeraX-Mole: 1.0
    ChimeraX-Morph: 1.0.2
    ChimeraX-MouseModes: 1.2
    ChimeraX-Movie: 1.0.1
    ChimeraX-MutationScores: 1.0
    ChimeraX-Neuron: 1.0
    ChimeraX-Nifti: 1.2
    ChimeraX-NMRSTAR: 1.0.2
    ChimeraX-NRRD: 1.2
    ChimeraX-Nucleotides: 2.0.3
    ChimeraX-OpenCommand: 1.15.2
    ChimeraX-OrthoPick: 1.0.1
    ChimeraX-PDB: 2.7.12
    ChimeraX-PDBBio: 1.0.1
    ChimeraX-PDBLibrary: 1.0.5
    ChimeraX-PDBMatrices: 1.0
    ChimeraX-PickBlobs: 1.0.1
    ChimeraX-Positions: 1.0
    ChimeraX-PresetMgr: 1.1.4
    ChimeraX-ProfileGrids: 1.4.2
    ChimeraX-PubChem: 2.2
    ChimeraX-ReadPbonds: 1.0.1
    ChimeraX-Registration: 1.1.2
    ChimeraX-RemoteControl: 1.0
    ChimeraX-RenderByAttr: 1.6.5
    ChimeraX-RenumberResidues: 1.1
    ChimeraX-ResidueFit: 1.0.1
    ChimeraX-RestServer: 1.3.3
    ChimeraX-RNALayout: 1.0
    ChimeraX-RotamerLibMgr: 4.0
    ChimeraX-RotamerLibsDunbrack: 2.0
    ChimeraX-RotamerLibsDynameomics: 2.0
    ChimeraX-RotamerLibsRichardson: 2.0
    ChimeraX-SaveCommand: 1.5.2
    ChimeraX-Scenes: 0.3.1
    ChimeraX-SchemeMgr: 1.0
    ChimeraX-SDF: 2.0.3
    ChimeraX-Segger: 1.0
    ChimeraX-Segment: 1.0.1
    ChimeraX-Segmentations: 3.5.10
    ChimeraX-SelInspector: 1.0
    ChimeraX-SeqView: 2.17.3
    ChimeraX-Shape: 1.1
    ChimeraX-Shell: 1.0.1
    ChimeraX-Shortcuts: 1.2.1
    ChimeraX-ShowSequences: 1.0.3
    ChimeraX-SideView: 1.0.1
    ChimeraX-SimilarStructures: 1.0.1
    ChimeraX-Smiles: 2.1.2
    ChimeraX-SmoothLines: 1.0
    ChimeraX-SpaceNavigator: 1.0
    ChimeraX-StdCommands: 1.19.1
    ChimeraX-STL: 1.0.1
    ChimeraX-Storm: 1.0
    ChimeraX-StructMeasure: 1.2.1
    ChimeraX-Struts: 1.0.1
    ChimeraX-Surface: 1.0.1
    ChimeraX-SwapAA: 2.0.1
    ChimeraX-SwapRes: 2.5.2
    ChimeraX-TapeMeasure: 1.0
    ChimeraX-TaskManager: 1.0
    ChimeraX-Test: 1.0
    ChimeraX-Toolbar: 1.2.3
    ChimeraX-ToolshedUtils: 1.2.4
    ChimeraX-Topography: 1.0
    ChimeraX-ToQuest: 1.0
    ChimeraX-Tug: 1.0.1
    ChimeraX-UI: 1.49.1
    ChimeraX-Umap: 1.0
    ChimeraX-uniprot: 2.3.2
    ChimeraX-UnitCell: 1.0.1
    ChimeraX-ViewDock: 1.5.2
    ChimeraX-VIPERdb: 1.0
    ChimeraX-Vive: 1.1
    ChimeraX-VolumeMenu: 1.0.1
    ChimeraX-vrml: 1.0
    ChimeraX-VTK: 1.0
    ChimeraX-WavefrontOBJ: 1.0
    ChimeraX-WebCam: 1.0.2
    ChimeraX-WebServices: 1.1.5
    ChimeraX-Zone: 1.0.1
    click: 8.3.1
    colorama: 0.4.6
    comm: 0.2.3
    contourpy: 1.3.3
    coverage: 7.13.1
    cxservices: 1.2.3
    cycler: 0.12.1
    Cython: 3.1.4
    debugpy: 1.8.19
    decorator: 5.2.1
    docutils: 0.21.2
    executing: 2.2.1
    filelock: 3.19.1
    fonttools: 4.61.1
    frozenlist: 1.8.0
    funcparserlib: 2.0.0a0
    glfw: 2.10.0
    grako: 3.16.5
    h11: 0.16.0
    h5py: 3.15.1
    html2text: 2025.4.15
    httpcore: 1.0.9
    httpx: 0.28.1
    httpx-sse: 0.4.3
    idna: 3.11
    ihm: 2.2
    imagecodecs: 2024.6.1
    imagesize: 1.4.1
    iniconfig: 2.3.0
    ipykernel: 6.30.1
    ipython: 9.5.0
    ipython_pygments_lexers: 1.1.1
    ipywidgets: 8.1.8
    jedi: 0.19.2
    Jinja2: 3.1.6
    jsonschema: 4.26.0
    jsonschema-specifications: 2025.9.1
    jupyter_client: 8.6.3
    jupyter_core: 5.9.1
    jupyterlab_widgets: 3.0.16
    kiwisolver: 1.4.9
    line_profiler: 5.0.0
    lxml: 6.0.2
    lz4: 4.3.2
    Markdown: 3.8.2
    MarkupSafe: 3.0.3
    matplotlib: 3.10.7
    matplotlib-inline: 0.2.1
    mcp: 1.18.0
    msgpack: 1.1.1
    multidict: 6.7.0
    ndindex: 1.10.1
    nest-asyncio: 1.6.0
    netCDF4: 1.6.5
    networkx: 3.3
    nibabel: 5.2.0
    nptyping: 2.5.0
    numexpr: 2.14.1
    numpy: 1.26.4
    OpenMM: 8.2.0
    openvr: 1.26.701
    packaging: 25.0
    ParmEd: 4.2.2
    parso: 0.8.5
    pep517: 0.13.1
    pexpect: 4.9.0
    pickleshare: 0.7.5
    pillow: 11.3.0
    pip: 25.2
    pkginfo: 1.12.1.2
    platformdirs: 4.5.1
    pluggy: 1.6.0
    prompt_toolkit: 3.0.52
    propcache: 0.4.1
    psutil: 7.0.0
    ptyprocess: 0.7.0
    pure_eval: 0.2.3
    py-cpuinfo: 9.0.0
    pybind11: 3.0.1
    pycollada: 0.8
    pydantic: 2.12.5
    pydantic-settings: 2.12.0
    pydantic_core: 2.41.5
    pydicom: 2.4.4
    Pygments: 2.18.0
    pynmrstar: 3.3.6
    pynrrd: 1.0.0
    PyOpenGL: 3.1.10
    PyOpenGL-accelerate: 3.1.10
    pyopenxr: 1.1.4501
    pyparsing: 3.3.2
    pyproject_hooks: 1.2.0
    PyQt6-commercial: 6.9.1
    PyQt6-Qt6: 6.9.2
    PyQt6-WebEngine-commercial: 6.9.0
    PyQt6-WebEngine-Qt6: 6.9.2
    PyQt6_sip: 13.10.2
    pytest: 9.0.2
    pytest-cov: 7.0.0
    python-dateutil: 2.9.0.post0
    python-dotenv: 1.2.1
    python-multipart: 0.0.21
    pyzmq: 27.1.0
    qtconsole: 5.7.0
    QtPy: 2.4.3
    qtshim: 1.2
    RandomWords: 0.4.0
    referencing: 0.37.0
    requests: 2.32.5
    roman-numerals: 4.1.0
    roman-numerals-py: 4.1.0
    rpds-py: 0.30.0
    scipy: 1.14.0
    setuptools: 80.9.0
    sfftk-rw: 0.8.1
    six: 1.17.0
    snowballstemmer: 3.0.1
    sortedcontainers: 2.4.0
    soupsieve: 2.8.3
    Sphinx: 8.2.3
    sphinx-autodoc-typehints: 3.2.0
    sphinxcontrib-applehelp: 2.0.0
    sphinxcontrib-blockdiag: 3.0.0
    sphinxcontrib-devhelp: 2.0.0
    sphinxcontrib-htmlhelp: 2.1.0
    sphinxcontrib-jsmath: 1.0.1
    sphinxcontrib-qthelp: 2.0.0
    sphinxcontrib-serializinghtml: 2.0.0
    sse-starlette: 3.2.0
    stack-data: 0.6.3
    starlette: 0.52.1
    superqt: 0.7.6
    tables: 3.10.2
    tcia_utils: 1.5.1
    tifffile: 2025.3.13
    tinyarray: 1.2.5
    tornado: 6.5.4
    traitlets: 5.14.3
    typing-inspection: 0.4.2
    typing_extensions: 4.15.0
    urllib3: 2.6.3
    uvicorn: 0.40.0
    wcwidth: 0.3.2
    webcolors: 24.11.1
    wheel: 0.45.1
    wheel-filename: 1.4.2
    widgetsnbextension: 4.0.15
    yarl: 1.22.0

[Tom Goddard]

I put in a work-around for these opengl errors on expose events yesterday. The problem appears to be that an OpenGL error produced by Qt code during the ChimeraX make_current() call is not cleared. Then the first OpenGL function after make_current() gets this error. In this report the "invalid framebuffer operation" is not a documented error that can be produced by glClear(). My work-around checks for OpenGL errors (glGetError) right after make_current and logs and ignores them. Hopefully at some point Qt will fix this so QOpenGLContext.makeCurrent() does not produced OpenGL errors (I think it is from dispatching events during makeCurrent seen in other bug reports).