I was farming King Borr when the next day I woke and tried to do the same. When joining the area only the gold skeleton lock was visible on one of the doors, the stone and wooden lock where nowhere to be seen. When my team entered the golden door King Borr was not there. Funny interaction is when we got close, we got pulled into a fight with no one and we won in 5 seconds gaining 0xp.
Please help and don't use your skeleton keys at King Borr right now