Ok so here’s what’s happening: I play a single note rapidly. Some of the note presses just don’t make a sound, and it almost seems to have a pattern to where it doesn’t sound. It happens if I play on a midi controller (3 different ones) and also when I just use the computer keyboard. When I record, it seems to record all the presses regardless of whether they sound off or not, and of course it sounds fine on playback, but while recording I can’t hear it the way it’s being played.
It also does it if I alternate on 2 different notes. But if I like, roll across 5 notes really fast, it sounds all of the notes fine. So the same note has to be repeated fairly quickly for the “drop” to occur.
Just to make sure I have tried this with multiple VSTs and sample instruments and I get the same thing. I also tried to duplicate the issue in Reaper, but Reaper seems to sound every note just fine.