Happened in Twilight Arbor explorer tonight. I stopped being able to see any mobs, and they couldn’t see me either. I don’t know what triggered it, but logging off and back one solved it. During the time I couldn’t attack anyone or take damage, but I could resurrect dead party members. There was no loot either, but I imagine that if this is repeatable it might be used as an exploit. Anyway, it wasn’t on purpose. Hope I don’t get banned.