I was starting to wonder if anyone else had this problem, or if it just happend to my clan! At least you got some xp my clan never got ANY even though I know I alone had well over the minimum 750 assists! I didn't really get to play that much over the first couple of days of the challenge, and then when I did it said awarding complete for some reason even though the clock was still counting down for 4 more days. I figured they would've corrected the results for the weekly challenge by now, but my clan still hasn't gotten ANY xp from it!
My Clan Link: https://elite.callofduty.com/connect/clan/view/1512345