MDL 1.2.1 Playback Missing Notes

Hey all. I'm working on writing out a few of my school's cadences, and while the note writing is fine, the playback is sloppy at best. As the dynamics change to forte or fortissimo or anything higher, the track starts to miss notes (Ex: the snareline will begin to skip certain notes in the playback in a series of sixteenth notes). It seems to have a correlation with when other tracks are playing notes, but when I set a track to Solo, it still skips notes. Any fixes to suggest?