Fatal Python error: Aborted

Current thread 0x00000001d9111300 (most recent call first):
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/ui/gui.py", line 1009 in _populate_menus
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/ui/gui.py", line 491 in __init__
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/ui/gui.py", line 191 in build
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/__main__.py", line 700 in init
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/site-packages/chimerax/core/__main__.py", line 1043 in <module>
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/runpy.py", line 87 in _run_code
  File "/Applications/ChimeraX-1.6.1.app/Contents/Library/Frameworks/Python.framework/Versions/3.9/lib/python3.9/runpy.py", line 197 in _run_module_as_main
