Just went into Scarlet Halls, and I believe the first boss is bugged. To my knowledge, the dogs are supposed to kill the guards blocking the path forward. But they didn’t in our run, they killed the boss and then did nothing, the guards still blocked the path and we couldn’t proceed. Ended up with everyone just leaving, and getting deserter.
Edit: The only thing out of the ordinary was that 1 dps was afk (later offline) in the previous room. Perhaps that could have caused the event to bug out, somehow?