I'm new to BIAB so I'm probably missing something but ...
If I create a song in BIAB and then open it in real tracks, the drums don't sync with the piano and bass. I used a style called DrJon shuffle blues at a tempo of 140. Sounds good in BIAB. If I mute the drum track and generate a different drum track the same thing happens. Both of the drum tracks are in sync but not to the piano/bass.
I get the same kind of thing if I start in real tracks and generate the tracks which are then all in sync but then use the generate midi track. The midi track is out of sync.
What am I missing?