I confirmed your assessment based on looking at the notation versus the chord chart. No surprizes here for me, especially since this falls into a Jazz category. The RT takes a lot of liberties. Many in this thread have acknowledged this.
If Andrew or any other PGMusic tech came right out at the beginning and said this, then I would have taken it for the answer and stopped pursuing this.
But no one did. In fact Andrew gave what he considered to be the solution.
I am discovering that his solution does not actually work.
At least not for jazz RealTracks, which is the only thing I am interested in with BIAB.