A few issues on Mac
Minor bug, but with MuseScore 2.1 and some versions below it when I first open a score and try to zoom in it won't zoom in. I have to first select a note or rest in the score and then zoom in for it to work. This doesn't happen on Windows.
Another thing that happens when I first open a score, if I press play immediately after opening it the sound plays back but I don't see the blue bar going across the score, nor are any notes highlighted in blue or green or any other color according to their voice like they usually are. Again, if I click on a note or rest before pressing play the blue bar is there and the notes are highlighted as the score plays.
Also, if you have so many notes in one measure that it exceeds the width of the page, the measure doesn't continue onto the next system without a line after the first system that the measure is part of, the music simply goes off the page while the measure lines stop at the margin.
If two different voices share the same note and but hold it for different lengths it will only play the first voice duration, at least I think so, or else it's the shortest note duration. Either way in the instance at the bottom of the post it plays the shortest note and doesn't hold it like the second voice says to if that makes sense. It could also possibly because the long note has a marcato marking over it but I don't think so.
During playback of trills the last note of the trill is held on to even when other notes have started playing after the trill is over. This seems to happen randomly and I don't know what causes it.
If I split a measure before the selected note, after I click off of the note it stays blue. If I click on other notes they will also be blue if I select them in addition to the blue note that I split the measure before. The only way to fix this is to click on the permanently blue note and click off of it again. Only then will it turn black.