MuseScore 3.6 freezes in note input mode and does not recover on Linux

1. On Arch Linux, I downloaded the AppImages for 3.6.0, 3.6.1, and 3.6.2 and also testet the Arch package.
2. I run them.
3. I work in the note input mode for a few seconds.

=> MuseScore freezes and does not respond anymore. It does not recover and does not show error messages. I can't close the window, I can only kill the process or terminate it with Ctrl+C in Terminal. Same thing with normal normal note input mode and rhythm input mode (I haven't tried other modes).


$ time ./MuseScore-3.6.2.548021370-x86_64.AppImage --debug
/usr/lib/libjack.so.0
/usr/lib/libnss3.so
QQmlComponent: Component is not ready
qml: STATE CHANGED HOVERED
qml: STATE CHANGED
qml: STATE CHANGED HOVERED
^C

real 0m15.123s
user 0m4.200s
sys 0m1.390s


Any ideas to get more information on that problem?