Evading obstacles does not work for actors missing certain animations
When actor is stuck it tries to stop relying on pathfinding and just move in arbitrary direction for short duration of time in attempt to get over the obstacle. This is done by enforcing specific movement for the actor using one of these directions. The problem is for any of those there is no animation for some actors like ogrim titan. This makes them impossible to evade obstacles. Considering their big size comparing to player it's very easy for them to stuck in exterior cells.