A bug encountered while playing co-op, which I think has been mentioned before but I will repeat here:
My partner and I each picked up a companion. I was hosting the game, and she had joined. She had picked up Jahan originally, but at some point, he got connected to me instead. I dismissed him so that we could pick him back up and he said that he would be waiting amongst the imps. We returned to the homestead to pick him back up, but could not find him anywhere. So it seems like two issues: First, he should never have become connected to me, and second, we could not find him after dismissing him.
Also encountering more crashes in co-op. Just had one happen where I was trading with a vendor and my partner tried to give me gold while I was still trading and it crashed the game.
