MotS - Level 10 - Enemies not opening door to hangar with blaster cannon

[Serathion]

At the end of level 10, there is a hangar bay with a blaster cannon aiming at a door. Behind it, a big group of enemies waits to enter the room. Sometimes they cannot open the door though, Mara has to walk over and open it or get really close before they can come out. I assume they are supposed to charge into the hangar bay, they managed to do it once.

[shinyquagsire23]

I'd hazard to guess this one might be an LEC bug but I'm not 100% certain