I posted this in a thread in Kroktopia, but I think it is more relevant here.
In the Ice Vault instance:
I defeated the Protector of the Fang and solved the puzzle with the oblesks.
I defeated the Defender of the Fang and solved the puzzle with the braziers.
But at the place where I should find the Guardian of the Fang, there is nothing. No boss, no puzzle.
Interestingly enough, I can walk right through the big doors that are supposed to open once all bosses are defeated and puzzles are solved. Nothing there, though.
