Glory of the Icecrown raider bugged

[Eladonk]

On my paladin name Eladon, I did glory run with guild and we managed to get all the achievements, but I wasnt awarded the mount of the glory achievement but everyone else was.

Also when I searched for the achievement I could not find it so its clearly bugged and needs to be fixed! Please have a look at it! The in game GM said he could not so anything and I needed to post about it so here i am.

[skullatbash]

Achievement -> Dungeons & Raids (remain in this tab, do not click on the sub-category).

Scroll down and you will see this:

Spoiler: Show

By clicking on the achivement you will see which one you miss

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EDIT:
Btw, by checking your armory: http://armory.warmane.com/character/...n/achievements
I can see you miss these to obtain "Glory of the Icecrown raider"

Spoiler: Show

Basically you also need to kill all bosses in heroic mode