[DUPLICATE] Image of Mimiron Npc is not active for dialogue

[tsonhadort]

WoW Freakz link:not a magic and npc dialogue to deliver the quest that is not active https://www.wow-freakz.com/item_finder.php?item=138393&&name=essence-swapper
Bug description: Image of Mimiron NPC is not active for dialogue to receive the quest as it should, I try to talk to him but he does not have a dialog box, I think his script is inactive.
Proof: http://www.wowhead.com/quest=43370/a-new-invention#comments
A New Invention
Details:
I have been experimenting with technology that allows you to alter the structure of beasts, specifically with how they look.

Progress:
This is my most magnificent invention I have made. In the last 10 minutes.

Completion:
Here you go, <name>. Take care of Hati and the Titanstrike and be safe in your adventures.

Rewards:
- Items:
Essence Swapper