Playback is faulty when the tempo is slowed down, especially after repetition signs.
S3 - Major
Start playback, slow down, listen till a repetition sign occurs.
Sometimes no further sound for a while.
Sometimes two simultaneous, staggered replays.
This is a known issue in 4.0.1 already fixed for the upcoming 4.0.2 - see https://github.com/musescore/MuseScore/issues/15385
Automatically closed -- issue fixed for 2 weeks with no activity.