Ab doesn't exist
Whenever I try to place an Ab, it instead shows a G#. This problem is mind boggling and makes me sick of such an overlook. This tiny little detail has completely ruined my immersion in the MuseScore experience, and such has halted my positive outlook on MuseScore as a whole. Please fix this problem that almost ruined MuseScore for me.
EDIT: Found the problem. The key affected the note placement. To anyone reading this in the future, I greatly overexaggerated my concern of this problem.