On my 2nd play through, I tried my hand at attacking Dallis and company at the fort gate. Started with my party on wall and teleported Dallis to the top to begin the battle. Took her out in a couple turns and she flew off. I'm not a great player so the battle was taking some time. The "pets" were getting stuck at the base of the wall and not attacking, just saying "Hngn" or something like that. Bishop Alexander disappeared completely for part of the battle. Later he appeared back in the turn sequence but when he took his turn the screen went black. I could see his statement "I'm coming to get you" but no effects or any actions and it seemed like he was timing out. I was taking my time to wipe out the remaining magisters and with one left plus the two pets suddenly the voidwoken drill worm appears on top of the wall to attack me. The dialogue for this was the same as at the end of act 1. I reloaded and made another attempt and the same thing happened. Maybe you intend for the worm to come if you take too long, but probably not for the Bishop to get lost in the void somewhere.