Enemies try to hover up elevator path in E4M4b

[Teflon1]

In E4m4b, if you get high enough away from the enemies on the bottom floor (like you stand on a crate) in the warehouse room, some of them will walk to the elevator on the right side of the room and slowly begin hovering up the path the elevator takes. It's not dangerous to the player, but it is very odd.

Screenshot shows several enemies crowded around the elevator and trying to hover up it.

[Knightmare66]

This looks to be a generic AI bug with the monsters climbing on each other's bounding boxes. It more notably occurs with the prisoners in E4M1, as there are large groups of them and they all rush the player.

[Frank Sapone]

Duplicate of #22.