This is what we like to call a character "blowing up". We haven't seen it happen in a long time...

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Every character is a "bundle", which contains the model, texture, animations, scripts, etc. Very rarely, the game will freak out while loading a character into the battle scene and it can have bizarre (and sometimes comical) results. Fitting that it happened to the one character with a loin cloth...

Thanks to RiverSong for reporting this bug!!!
(sorry your battle blew up)