Lol i don't think so. I'm pretty sure it's just about confusion with the altitude/location of the avatar. Sometimes for example the avatar when loading inside of storage, will "fall" endlessly, but usually eventually he gets up into the storage. If the spawn of the avatar was just say a foot above normal then that'd be no problem he'd fall on the floor. with this roof though i think it depends where you stand cuz its not all one section. where i am, anyways. this time, in NU, im stuck again, but at least im not "falling"
The Allfather