Found a rather serious bug (at least I think it is a bug). When placing oil on the ground and lighting it on fire, if the mob resists, they become "invisible" and unable to be attacked.
Happened first with the 2 Legionnaires on the bridge. One was failed to resist and got burned, while the other resisted and was standing there shooting me for 3 turns, while I was unable to attack due to him being invisible. Once the oil faded, I was able to attack again.
Repeated the same issue with the next fight vs orcs.
