Casterly Rock pathfinding broken [2.1]

[Moose]

Version 2.1.

Attempted breaking out 2 lords, AI mesh seems broken. The screens were taken right near the prison entry. Wandering peasants also seem to be stuck in the cave-gateway.

https://imgur.com/a/NoXpY

There's also a flying chicken in the room, be careful.

[Maester Rawl]

Sieges there also have major problems around the cave and the keep. There are walls the AI doesn't see and try to run through.