Padshop cuts in and out

I am so confused by this.

I’ve got a very short project that involves seven midi tracks. I have the levels set as I’d like, but when I playback, sometimes certain parts* of one track (Padshop) are muted. Not the same parts, and not consistenly.

I can play the piece on a loop and each time it goes through, a different part is muted. And on export the entire track is at about 20% volume.

What is going on? What might be causing this situation?


*parts= a short segment of activity, separated by inactivity. Activity at roughly :03, :08, :11, :14, :22. This is only :26 piece.