Dynamics not playing back correctly
Dynamics are wildly inconsistent in playback. In the attached file, the bass part plays back as 'f' even after it should be 'mp'. The second and third 'f' chords sound softer than the first. In measure 6, 'p' results in a change, but the four notes starting in measure 6 are louder than the same sequence starting with the chord marked 'f' in measure 7, even though they are marked the same as the first sequence.
Starting in measure 11, I switch from staff to part dynamics. My interpretation of 'part' would be part within a staff rather than part over the system. But even if it should be for the entire part over both staves, it doesn't make sense. The bass clef part continues to sound 'f' even when marked 'mp', but the treble clef sounds more like 'mp'.
So there are lots of problems here. Also, why is 'staff' default for the first dynamic marking but 'part' is default for changes after that? Perhaps the default should always be the same as the last marking on that staff?