Window misplacement
I tend to leave Musescore open between computer sessions. Often, when returning, even though the Musescore window is maximized, it sits about 10 pixels below the top of the screen. When trying to select objects, one must click 10 pixels above in order to select them. I used to quit and restart Musescore to correct the problem. Later, I figure out that minimizing then maximizing the window fixed the problem.
Running Musescore 4.4.2.242570931, Windows 11 Pro OS build 26100.2033
Comments
This might be one of the issues fixed with 4.4.3, check the release candidate