No achievements after completion.

Hey, I was wondering if anyone could help me or give me any official support on how and why I am not receiving my achievements.

With what has happened, playing The Master Chief Collection. I started with Halo: Combat Evolved on Legendary and now have completed it. My game says I have done all ten missions on Legendary. Yet, one Achievement didn’t come up saying I have completed the Library. Another six Achievements that say “Done! Unlocking…” and another 6 Achievements on 90% as Apparently I have not completed it.

Now with this, I’m pretty sure I am not the only one that is having this issue, yet I and others with this issue need an official answer on what is going to be done. My game says I’ve completed it, yet I have not been rewarded the achievements.

Has anyone encountered this?

> 2533274795149058;2:
> Has anyone encountered this?

I have when I beat truth and recogsilation (pardon my spelling) on normal it says I beat it and the achievement is done, but all it says is Done! unlocking… its said this for a while now.

I am pretty sure 343 is tracking on the achievement bug and are working to fix it. In time everything will be good to go.