I am running Finale v26 on a Mac- OS 10.14. I'm doing a big band score, and the only playback sounds I'm getting are from the chord symbols in the piano part. I have it going through audio units for playback, and I believe the midi channels are correctly assigned. I have tried reassigning sounds. Wondering if having more than 16 channels messes it up, so I went back to just sixteen channels but still no change.