I've seen a couple of mentions of this issue in other threads, but I haven't seen any response to those posts or a thread dedicated to this, so:
Frozen likes to teleport my officers back to the barricade when I get to Obisek's room. I can go back and retrieve them before I start fighting, but they're unable to come to me because they get stuck trying to run through a wall. This can be worked around (going back and retrieving them before you actually enter the room, since it seems to only do it once, or dying and respawning) but it seems like a thing that shouldn't be happening at all.
Has anyone else seen this happen, and does anyone have a reliable way to avoid it?