No "GRENADE HAPPY!" Challenge reward

Games Other Halo
1

I just completed mission “Requiem” on Heroic with the 3 skulls (Cloud, Catch and Tough Luck). I got the achievement “Skullduggery”, but there is no indication that the weekly campaign challenge is completed (not even in progress)

Is this a possible glitch? Any chance I will get my XP?

2

with a game with as many glitches as this has, does that even surprise you (like all the Crimson LOLcheivments being mad glitched)… just do it again man