Opening image causes window to freeze (normally due to hidden dialog)

MacOS Big Sur, version 11.6.2, Macbook pro

Whenever I open or drag-drop an image in gimp the window stops responding - freezes

All buttons stop responding, including the image
The layers area will show the imported image and I get the correct context menu when right-clicking, but left-clicking has no apparent effect
Buttons I click on are remembered after restarting gimp even though they appear frozen
If I click an unresponsive tool button and attempt to make changes to the image (which also does nothing), then close gimp, it will prompt about unsaved changes as if something has happened in the background
It's almost as if the visuals completely stop updating but behind it gimp is still active and working, but I can't see that
For some reason most images cause the freeze but with no apparent pattern some images don't, and once I've opened one that doesn't cause the freeze I can then import one that does without issues
Gimp doesn't crash or show any error messages, and waiting 5+ minutes does not resolve the issue. Have to force-quit.
During the freeze I can still save or export. Exporting a .xcf of the image, restarting gimp, and opening the xcf causes the same freeze.

Is the bug reproducible? Always

Reproduction steps:

…

Expected result: Image is opened/imported and operations continue as normal

Actual result: The entire window freezes, buttons stop responding, but it's not a normal freeze as described above.

Edited Dec 22, 2021 by brettamann