Fighting solo with companion. Had it happen twice now that I die at this encounter, resurrect and then immediately fall down again with the recap screen popping up. But I'm apparently in limbo, the fight continues, I can not resurrect again, says I'm in combat. So I'm stuck with the Herald fighting an invulnerable corpse, companion going with healing. Only way out is to quit the game, and when I log back in I'm alive again, at low health, but not in combat, just outside the arena.
It seems to happen when I let my companion die to the channeled attack that draws him towards the Herald. I then die immediately after seemingly out of nowhere.