I had just killed runt in the steeple and decided to do some exploring of the map. Did a couple of side quests and then ran into some bandits. I took the first one out with a well-placed arrow to the head, then pulled my sword to fight the remaining 2 bandits. After a few minutes I found that despite hitting them several times both their health was at max. Then I realised that when I successfully land a blow it appears that sparks fly from their helmets but no damage is taken. I tried using the axe that I also had with me and even picked up bandit number 1s mace but all did the same. I persisted for around 20 minutes fighting these 2 bandits with a number of my skills levelling up but just could not kill them.
Any ideas what to do?
I may try an older save point but don’t really want to do this if I can help it.