Not sure if this helps but I always also have "loop entire song" enabled and I usually play four or eight bar loops within a song. Sometimes It switches me to notation mode. You MUST have the bars highlighted, or it goes off the end of the loop.

I have had issues with BIAB not accepting the end of the loop, with it switching to notation mode without being asked to, with loop markers being played incorrectly, or even when not present.
When I get these anomalies I often start a new blank song and copy across the data, or write it in again. In other words rebuild a copy (not a duplicate), trying to give yourself least work. Perhaps try cutting offending sections out (using a duplicate of the original.

Mostly it works, but its it's quirky.

Z


Win 11 64, Asus Rog Strix z390 mobo, 64 gig RAM, 8700k