Alright, I just wanna share this experience I encountered with a transmogrify essence bug. First of all on my main account which is a paladin, I did an xmog of Fel Barrier ( Same model as Skullflame Shield ) Which drops from the last boss of Mana Tombs Heroic, and applied the essence to my ICC10 shield, which worked perfectly. Now upon logging on to my 2nd account which is on a hunter, I had a misapplied Ahune Scythe essence sitting in my bag for almost a year, which turned into a Fel Barrier essence instead. Take note that on this hunter I never did Mana Tombs HC which is where the shield drops, what baffled me is if the glitch is somewhat related to game files on my PC? Also I haven't tried using the glitch essence yet to confirm if it's a visual bug or not.