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http://dbd.game/killswitch
Prenn Asylum No collision
(I think I got map name wrong. I changed name of it to fix it, it might be Father Campbell's Chapel but I'm pretty sure based on what i've heard it's Asylum. Correct me if I'm wrong.)
PC, but probably works for all platforms.
There's a greenhouse looking thing, I don't really know how to describe it, kinda like a plant little garden with an arch. The metal walls around it have no collision, but buggy hit detection that only when I am inside of a wall register me as hitting it.
There's really no steps needed to reproduce it other than to just walk into it. It lets you pass right through it.
Did it in a public match on accident, so I tested it with a friend here in a custom lobby to show it.
(Please bear with me I have no idea how to upload videos here so I will link my youtube upload of my video evidence here)