I did report it already but if you are on Xbox be aware of this incredibly fun bug. Now I seem to be a magnet for bugs in this game, between being glitched into bushes and falling through the map, today I found myself fighting enemies that had been blessed by the hand of the lord and become immune to all melee damage. I spent about 4 hours playing and was not able to win a single fight, and at first I though well I just suck that bad at this game but I became suspicious about an hour or so ago and sent a clip of a fight to someone else who was playing. They informed me the hits I was delivering were very clean and should have been doing damage or at the very least staggering the enemy and suggested I reboot the game. After rebooting the game I was then able to kill enemies with ease, partly due to the insane amount of leveling I was able to do fighting these oh blessed enemies. So if at any point you dont see their HP bar go down or become over suspicious that you are not able to kill someone you may be a victim of this bug as well. Save your game and force quit it and it resolved the issue, for me at leas.t