Twisting Corridor auto kill, no fight

For almost 2 weeks I have been trying to complete layer 1 on Twisting Corridors. Each time I go into it, it will periodically kill the entire party, never while in combat and usually when entering a new floor. This happens enough that even though nothing else kills us, we keep running out of lives. I have gone in with two people and five people. I cannot complete layer one at all. I reported this as a ticket and was told to report this as a bug.