I noticed this issue first in the court yard of the moat house of TOEE and it became obvious in IWD mod. There were four orcs in my initial encounter in the orc cave of IWD. This should be an easy fight, right? Three downed, but the fourth orc, white circle, was in the fog of war. Don’t understand why the orc in fog of war joined the battle but never came to fight me. I guessed I needed to go for him. This is the issue NO.1. Monsters in fog of war joined the fight but never come at the players. A few steps ahead and we got two more orcs to slain. I don’t understand why these two orcs didn’t join the battel at the start since they were the same distance from me as the fourth one. Another three downed and I found out another orc, white circel, in fog of war joined the battle. And yes. I needed to bring the fight to him. A few steps and another orc came into sight. Another two. Another two. Another three. Finally, I killed 15 orcs instead of the original 4 I faced. But soon after the battle ended, before I can walk my party into the exit of the cave, another orc in the fog of war initial another fight. I guess I have to kill all the orc in the cave before I can go back to base.