1. Open any song, load any MIDI style, press play
2. Freeze any MIDI track
3. Piano roll > Edit anything on that track (for example, create or delete any note)
4. Press "Regenerate and play" (F4)

Expected: all tracks except the frozen one will regenerate
Actual: "X Track exceed track capacity - need to reduce number of bar / choruses in song and try again".
If at this point you'll get that message no matter if you press "Play" or "Regenerate". In order to play the song you'll need to de-freeze the track.


Latest BIAB version, latest build.