I bought a new Mac M1 and I installed musescore two month ago. Is full of bugs! When I connect my focusrite, the software goes totally crazy: the metronome of my piece changes totally (also if I specify It, like a quart =80), the notes goes down with the pitch, sometimes it sound like White noise! Also there is a bug with the solfeggio in a measure of 3/4 if you want to add a irregoular figure as a dualet it should be a dualet of a minim, not a quarter because the value has to be always surplus.
a) Focusrite Scarlett Solo 2i2: https://musescore.org/en/node/273248
b) Focusrite Scarlett 2i2: https://musescore.org/en/node/317860