This really sucks. My achievements aren’t unlocking. I have the ICON saying i completed all the levels on legendary, says here I only completed 5… Any Ideas?
Mine did the same thing. After a day or two everything just magically unlocked even though it said I was still missing two levels.
Was it Halo 4 that you had this issue with? If so then I’m right there with you. The other 3 games worked fine.
It was 5 levels on Halo CE and 2 on Halo 2… I have beaten every level on both games solo legendary. Have the legendary icon next to every mission, But not appearing or giving credit… pretty wack. Sigh.