That all seems to be working in the latest Biab.
Use the same chords as in the SGU to test it.
It seems to be playing the verse style and chorus style correctly and the pre-fill going from chorus back to verse plays though it play this in other places of the chorus, you will here it plays a held strum on the second part of the bar in the chorus.
If you use this guitar below instead of the included one it has a vocal count that seems to line up now, though it still transposes some but not overly, as you will tell when the vocal pitch changes.
https://www.pgmusic.com/forums/ubbthreads.php?ubb=showflat&Number=513914

Let me know what results you get.