Achievement unlocked bug

Hello,
I have beater the game on legendary while getting skulls almost a month ago and I have yet to receive the achievements. I have all skulls and i have the option to use all the skulls. Every mission show the hardest difficulty completed with the legendary logo. Under my achievements it show 33%. At time of completion it showed 100% but locked. Can this be fixed?

That happened to me with a few different achievements as well

> 2533274794519448;1:
> Hello,
> I have beater the game on legendary while getting skulls almost a month ago and I have yet to receive the achievements. I have all skulls and i have the option to use all the skulls. Every mission show the hardest difficulty completed with the legendary logo. Under my achievements it show 33%. At time of completion it showed 100% but locked. Can this be fixed?

What does the achievement tracker on your xbox show as?