"A" key not working as intended.

I've posted this before, and the thread dies. Please consider it a bug report.

When inputting notes, the 'A' key only send the cursor to the beginning of the measure. To compensate, I have to input G or B and nudge it up or down.

This thread has been suggested:https://github.com/musescore/MuseScore/issues/20866
It has not been helpful.

Yes, I have removed two navigation shortcuts from the .xml file, and I am using the English keyboard layout. I have triple-checked all shortcut settings and my own system settings.