Did it again on a new song, switches back to the 'a' pattern at bar 32. Also, after going back to the 'a' pattern at bar 39, (the way the song is programmed) it gives me a random fill at bar 40. It did a similar thing later in the song - a random fill where none is programmed.

I also had to do the drum track workaround to get rid of the drums N/A message - right click on the drum track in the plugin window - go to choose a new drum track - choose the track it can't find - now it can find it.

I'll email the song. Video at the link.
https://youtu.be/ityZyzfIToM