not sure if it was shown before, but i think its new unwalkable spot
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also this, i just entered relekka slayer cave, i think i clicked multiple times and i started walking and couldnt stop, this is what happened after relogging
EDIT: to do that bug you simply have to click on the cave enterance a bunch of times and simply wait, heres more footage
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EDIT V2: it happens if i simply click on the cave once