Coop Split Screen Completion Not Registering

So, my fiance and I have been trying to play through all of the campaigns in this game. Once on normal, then again on legendary. Due to bugs and whatnot, it’s been a long and frustrating time just to get through Halo: CE and Halo 2. We were playing split screen, she had her own XL account. Earlier she wanted to start halo 3 alone, and when she signed into her profile it says she has completed 0/10 chapters of coop in Halo: CE, she checked Halo 2 and it said she had completed 5/15 coop. We finished both games, she even got the achievements.

Has anyone else reported this issue? I mean SERIOUSLY all these bugs are beyond frustrating now. This game is a hot mess and with no timetable on a fix.