I've seen that bug many times. I think those bandits appear after the first respawn of Thjorgard map. When you first go there, you see that green thing which is required for scholar promotion. The second time or after the map respawn there appear some bandits that don't have any AI.Btw, has anyone experienced the bug with wood beams in Yanmir's fort? Once I destroyed the beams, saved the game and after a reload the red colour reappeared and were able to hold the floor. I would count it a game-killing bug unless it is already fixed that killing Yanmir in a normal way counts.