Alright good to know. Two worm creatures in troglodyte cave seemed to regnerate their core armor indefinitely and were complitely immortal. Also attacks to stinger and tentacles did not cause enough damage to kill them. Not sure if my build was bad against them or if they were bugged somehow. I tried to kill them 5-7 times and every time they complitely overpowered my character. I just skipped the combat after a while.
Fights where there was two enemy factions seemed to just simply freeze. If there were troglodytes fighting undead I would be able to get my first turn. Then enemy's would make theirs and then freeze. Second turn would never come. I skipped thous battles because there was no way to get it unstuck. Quest where I was hunting some monsters with spear elf girl and we met the lobster looking creature that ally's with us. That fight did not freeze. Every battle where there is hostile AI vs Hostile AI vs player it would freeze.