Finished the quest "Awakening" and unlocked the achievement, but it doesn't count towards my gamer score. Any suggestions to fix this?

You may need to sign out and sign back in.

I had this problem and I contacted Microsoft who ( I know it unbelievable but) and they fixed it for me!

You must delete your profile ( there is an option that lets you delete just profile and not its saves) then recover it through XBL. Fixed the exact problem with the same achievement for me. You might have to do awakening again though.

Boy sounds like a lot of work, all I had to do was sign out and sign back in when this happened to me with other games.

Nah it only took 5 minutes.


EDIT:
Not including time spent waiting on hold while the person the phone discussed with a 'dlc specialist'. Although the service was allot better than I expected.

Do I delete the profile from my storage?

Got it. thanks

I have had that, where it won't update. Xbox support said to try to get an achievement (a different one) I did that and it updated. So try to get another achievement and see if it updates.