Here is another bug which happened to me. It is a paste from GoG forums.
There is a pack of ogres in the in the northern Elmshore area. Two of them are druids and they would cast plague of insects which would stay permanently on you and your party. And the worst part is that the effect seem to be stackable. My entire party had two debuffs at once. After somehow surviving the fight, i noticed that the effect isn't wearing off. Out of combat regeneration would mitigate the endurance damage, but not the health damage. Even resting doesn't remove it.
So yeah. The list goes on.
