The group of gul in the Old City that are clustered around the soul, if I entered combat with them I can never get out, they don't die, I do enough damage to kill them but they just keep attacking and are now untargetable as well, can't leave combat, can't change screens because I'm in combat. I have tried reloading the map a number of times, even tried going back a few saves and redoing content but always end up in the same bug. Sometimes one of them will die and stay dead but never all of them.