Most prominent one I've seen so far is immediately after the room that teaches the player about attack matchups. Trying to travel back into that room triggers Jill's dialogue about meeting them up ahead despite being in the party. I've noticed it also sometimes locks movement controls too, thinking you're still in dialogue when its finished.
I've also noticed the Digest bug I mentioned can also happen to the Inflated condition. I think what might be causing it is when both party members are at 3x Fattened/Inflated, at the same time.