Got a bug where your character model is cloned after certain story events. I saw my character duplicated multiple times, one at City Gate save crystal, and two at the Aqueducts, one near the gate and another at slime king boss. I figured to farm a bit of xp so I went back to fight slimes and saw these two clones that did nothing and just stood there. In fact, I tried using a potion on myself but it didn't work while the clone was present in the fight (with slime king). Also sometimes the slime king tried targeting and attacking the clones, but to no effect.