i believe it's some kind of pathing problem.
For instance the fight with the ancient mudlings went like this:
the ancient mudlings summoned the younglings, who just stood there.
the first wood treant went through the entangling thorns towards my party on the small island, the second one had his path blocked by the first one, so he went for the closest edge of the docks and just stood there for the rest of the fight.
The fight with the goblin camp went like this:
i was standing on top, where the drunk goblins slept (Allready killed them before the fight with the whole camp).
every ranged goblin was attacking me like normal and the melee ones just stood there, as if they did not know that there was a path towards my group ( a very very long path).
they only started moving when astarion got knocked down and was a viable attack option in range.
