Halo: Reach Nightfall bug

[[CE]✚Death Korps QM✚]

So I completed the nightfall mission on legendary in both co-op and in solo. Yet the game shows that I have not completed it. Does anybody know if this is a bug or some sort of error? I would greatly appreciate the help.

[elvandar]

I had the exact same thing on Nightfall.
After restarting the game a couple of times, it seemed to have fixed itself.

[[CE]✚Death Korps QM✚]

Originally posted by elvandar:

I had the exact same thing on Nightfall.
After restarting the game a couple of times, it seemed to have fixed itself.

Did you need to replay the mission again or did you just restart the game? When you did this did you also get the achievement for Nightfall because I dont have the achievement or the completion status in game.

[elvandar]

Originally posted by Grey_Kn1ght:

Originally posted by elvandar:

I had the exact same thing on Nightfall.
After restarting the game a couple of times, it seemed to have fixed itself.

Did you need to replay the mission again or did you just restart the game? When you did this did you also get the achievement for Nightfall because I dont have the achievement or the completion status in game.

I already had the achievement. I replayed the whole mission (but speeding through it, not caring about those civilians).
After the replay, it looked like I still didn't complete the mission. It pissed me off, I quit (mind you, my checkpoint was now in the next mission, Tip of the spear).
Restarted, played some multiplayer, restarted again and then it seemed to suddenly be fixed.

[[CE]✚Death Korps QM✚]

See my problem is that I never even got the achievement to begin with.