(mild spoilers) ExcalU falling through deimos map

[(XBOX)Sodali0660]

So when i go next to a wall with Excalibur Umbra, transference to my operator, maybe have him make a couple steps, transference back, i fall through the map.. this happened so frequently i started purposely doing it and got to the door where one of the vaults were (little further i wouldve been in it). i could only move around effectively while i was under because archwings were deployable and i landed on top of a cave which apparently had collision up top. anyways, i might be unique to this bug since another friend of mine uses umbra a lot more than i do and she hasnt fallen through the map lel