I was a beta tester of both Dawnguard and Dragonborn DLCs. I unlocked the achievements for both and Hearthfire as well. when i look at the main menu it shows 61 of 75 unlocked, but when i actually select Skyrim it shows 70 of 75 unlocked. I have deleted and re-downloaded all of the DLC and the problem still exists. I am missing 5 of the dawnguard achievements but i know for a fact I completed them. i guess my only option is to load up an old save and see if it kicks it into gear. Its very annoying not getting a 100% completion on it, when i know i did.

So yeah i loaded an extra save previous to dragonborn and it still didnt fix the fact that i have beat the DLC. It shows i completed the required quest but no achievement. The ones im missing are Beyond Death, Lost to the Ages, and Awakening. The actual achievements page shows that i havnt completed any of the DLC achievements except two.(I just unlocked those really quick to see if the game would kick into gear and fix itself)