Blight map - bugged mob in wall

During a blighted Arcade map (T16) one of the mobs teleported into a wall trying to hit me. Neither me nor the towers were able to attack the mob. The mob is a Deadly Blighted Rattler. I managed to grab most of the reward chests, but I missed out on the loot explosion on the blight pump as well as one set of reward chests.

bug report reference number 1,501,394,062
https://imgur.com/a/FRyVATD