To be fair that also happens in BG3 in TB, when the enemy is "plotting next move" for 10 seconds and then it does nothing. Those could be problems of the game engines themselves. in crowded situations, the enemies do not know what to do. Could be hard to fix because that´s something you usually do not want to mess with when you are already making the campaign based on your game engine.
Maybe if they do an enhanced edition later or something we could get a fix for them.
