Some navigation commands in chord symbol writing mode don't work

OS: Windows 10 Version 2009 or later, Arch.: x86_64, MuseScore version (64-bit): 4.2.0-233521124, revision: eb8d33c
With an italian QWERTY keyboard, using ; and : to navigate ahead and back by 1 beat doesn't work.
Possible confounding factors:
1. I switched the whole score's time signature a few times between 2/4 and 4/4 (it is currently the latter)
2. I had made the barlines invisible on one staff at one point, but they were visible at the moment of the bug
3. On my keyboard, ";"=shift+"," and ":"=shift+"." (don't know how other keyboards are laid out)