MuseScore 4 mixer window collapses after opening
Since updating to MuseScore 4.0.2, the mixer window open collapsed into a thin vertical strip, about the width of a scroll bar. The contents of the window can be seen whizzing across after it opens. The window can be resized and used, but the next time it opens, it'll be collapsed again.
Repeatedly opening the mixer window without resizing it eventually crashes MuseScore.
Version info: macOS 12.6, Arch.: x86_64, MuseScore version (64-bit): 4.0.2-230651546, revision: dbe7c6d