"MuseScore" is not responding
This occurs on Ubuntu 22.04.1 LTS with MuseScore version 3.6.2.
Each time you move the mouse a dialog appears saying "MuseScore" is not responding". Stop moving the mouse the dialog will disappear. Once you start moving the mouse it will appear again in about 2 seconds.
Comments
Similar issue came up in https://musescore.org/en/node/334591
See #334653: MuseScore gives a "not responding" message when moving the mouse
Found out a solution to the problem. When you upgrade to 22.04.1 LTS, it disables the proprietary video drivers during the upgrade. You have to manually install the latest drivers again. Once you do that, the problem goes away.
In reply to Found out a solution to the… by dadamsonatwor
Workaround: https://musescore.org/en/node/334653