Problems with MS3 (layout mostly)
If you manually move the end of a pedal line, it displays fine. But after saving and re-opening the score, it will be reset to its default position (see screenshots 1 & 2 for before save and after open).
You can stretch an arepeggio line across 2 staff, like so in screenshot 3. But when you save the layout is altered and the staff spacing is made bigger (prob. to avoid collision between the upper staff and the lower arpeggio line), see screenshot 4.
RE 1 and 2: it would be really nice if MuseScore did not alter the document layout when I save. When I save, I sometimes see some positions change on the page and it basically means I have to proofread the entire score to be sure everything is laid out as I want it to. Either make immediate visible layout adjustments when editing, or don't make any adjustement when saving. Changing stuff behind user's back is bad.
- Layout sometimes collides, e.g. a 2nd voice rest with 1st voice note. See screenshot.