Sometimes when I damage an enemy, a portion if not all it's HP regenerates. And I'm not talking about Hobgoblins when they activate their shield (still can't tell if that's supposed to happen). I've thrown a grenade at an enemy brought down its shield to 10% and before I can put another bullet on it (no, I didn't wait 5 seconds for it to recover) it bumps straight back to full. Anyone else getting this?