[DUPLICATE] Sub Rogue Hidden appearance bug

[xtrem43]

WoW Freakz item link:

The item doesnt appear in the WoW Freaks list for some reason (Tome of Otherwordly Venoms [http://www.wowhead.com/item=139571/tome-of-otherworldly-venoms] )

Bug description:

I just had finished to get the Tome of Otherworldly venoms for the Hidden appearance of the Subtelty rogue, as I got it I used to unlock the hidden appareance, but as soon as the animation/showcase of the weapons ended, my weapons had the same appearance than before and the option for the hidden appearance wasnt unlocked

Proof:

https://imgur.com/a/lgsJA