I created my own playback template that overrides the trumpet sound, but it creates this strange behavior with playback. The trumpet is silent during staccato passages, or it might do the opposite (only play staccato passages). I can fix it by applying the default playback template, then manually changing the trumpet patch and expression map to what was specified by my playback template. I’m using Trumpet Combi & HSO Trumpet Solo (which has always worked fine).