King of the Mist

I was doing 100 shard King of the Mist, and he bugged out after sending me to the maze phase. When I found my way out, he was stuck on one of the elevated platforms on the east side of the map. It was walled off and I couldn't get up to him. I was able to get a few skeleton archers up and eventually they plucked him down but now the loot is walled off and up there.