I’ve noticed that Waypoint and MCC Xbox are not keeping track of multiplayer game stats. It shows that it hasn’t worked for about 4 days now and I played a ton last night. The challenges work but game stats are not updating.
I’m having the same issue. I’m currently going for the In It To Win It achievement, but it seems that my count is locked at 197/200. I’ve noticed that it’s locked at 197 for other achievements as well, whether it be 197/300, 197/500, etc. It’s really annoying because I won over 5 games yesterday and my stats didn’t change at all.
Yeah I am having the same issue. Was 2% off winning 250 multiplayer games achievement to unlock. The last two days hasn’t unlocked when I have won at least 20 games with my mate. Weird thing is I unlocked an achievement a week ago! So annoying!!!
Hey folks, issues related to challenges are known by 343 and they are investigating. Please do make sure and file a bug report about any issues you are still facing on the Halo Support site: https://aka.ms/HaloSupport
I am having that issue as well as of 2 days ago as well. It’s upsetting if the challenges that they have added are now bugging out achievements that have been in the game for years.
Halo waypoint doesn’t upload my stats… resolve this problem please
Im playing on PC mostly and so far i can conclude that the following are not tracking/updating:
Campaign: Score and Time (Reach, Halo 2, Halo 3)
Campaign: Achievements (Reach, Halo 2, Halo 3)
Multiplayer: All stats
Though EXP and Challenges are tracking… im currently about to do the Speedrun 3 Hours on each campaign, and im missing Halo 2 and 3… i have played a whole day trying to improve missions but at the end of the day i found out ALL gaming that day was for nothing 
I have not tried Halo 1, because im done with that.
I’m not gonna play this game again before it is fixed.
Multiplayer wins is also not counting for me. Been stuck at 420/500 for 4 days now. Halo waypoint also doesn’t track any games since August 12.
Hey folks, this is a known issue that 343 are aware of. You can follow the thread below for updates, but there’s no ETA on a fix right now:
https://www.halowaypoint.com/en-us/forums/8f4648981f554a9d86527a5754966e89/topics/known-issue-mcc-stats-not-updating/e4b5c7dc-c194-48e1-90ab-2316b2c08d6a/posts