Just finished the heroic halo 3 campaign, started yesterday but had to get off for other reasons. Reset was today and i went ahead and finished. Completed the challenges “Twenty Grand” (Complete Campaign Missions with a score of 20k or higher 3x) Done. “Heavy Lifting” (Defeat heavy infantry 75x) Done. “Infantry Eliminator” (defeat 200 enemies) Done. Also finished three more blue challenges, all say 150/150, or 3/3, or 50/50, meaning the criteria has been met. Where’s the rewards that come with them? Took a break from halo since wayyyy after halo 5 stopped being updated and waited until reach came back and hated how hard it was to get the season points. now it’s easier, cake back, and it doesn’t even work. what’s up 
Edit: Read in another post to sign out and sign back in. Doing so resulted in only about half of said challenges being completed, the other half going back to zero OR only being somewhat finished.
Edit 2: After completing a few games, progress made on i fished challenges reset back to zero, plus no credit for the challenge “Voi Polloi I” (Complete a full halo 3 playlist) after completing full halo 3 heroic playlist.
Hey OP, issues regarding this are known at the moment Please make sure and file a bug report about your problems on the Halo Support site: https://aka.ms/HaloSupport
I’m experiencing the same situation when I completed the challenges but I don’t receive the rewards. It’s irritating since I did the challenges 3 times and restarted my console to see if it works but nothing. I hope 343 sees this and hopefully fixes it soon so I can get back to playing and start unlocking tier rewards.
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> I’m experiencing the same situation when I completed the challenges but I don’t receive the rewards. It’s irritating since I did the challenges 3 times and restarted my console to see if it works but nothing. I hope 343 sees this and hopefully fixes it soon so I can get back to playing and start unlocking tier rewards.
i hope so too. trying to get all the reach unlocks as fast as possible before starting the CE ones 
Yep noticing this in pvp challenges with medals.
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> > 2535462458923724;3:
> > I’m experiencing the same situation when I completed the challenges but I don’t receive the rewards. It’s irritating since I did the challenges 3 times and restarted my console to see if it works but nothing. I hope 343 sees this and hopefully fixes it soon so I can get back to playing and start unlocking tier rewards.
>
> i hope so too. trying to get all the reach unlocks as fast as possible before starting the CE ones
Yeah I finished the reach tier season before the next season so I can focus on the new season. Now I’m hearing they’re working on season 3 so I want to finish before the next one.