Challenges not progressing

I’ve run into an issue where challenges won’t progress for me more often than not while I’m playing. I have played the following activities:

ODST Campaign - Tsavo Highway on Heroic (no progress)

Reach Campaign - The Package on Heroic (progressed normally)

Match made Firefight - Heroic Firefight Limited (no progress)

Match made Firefight - Firefight Doubles (no progress)

The challenges I noticed did not progress when it wasn’t working are:

Heavy Lifting
Infantry Eliminator
Hide and Streak
Hot Shotty
Trusty Sidekick
Thanks, Misriah
Zero Five Eight

Is there a known issue with challenge progress being spotty? Or are there certain activities that don’t work? A link to a thread or article detailing what does and doesn’t work would be just as appreciated as an explanation, thanks in advance for the help.

Issues with Challenges are known and being worked on
https://support.halowaypoint.com/hc/en-us/articles/360039997432-Halo-The-Master-Chief-Collection-Known-Issues

> Challenges: The team is currently investigating player complaints around challenges and is working on a build update to address the following issues:
>
> - UI is displaying less progress than players have when rebooting the game. - Progress on Challenges is not transferring between Xbox One and PC.Once these issues are resolved internally, we will be preparing a game update to resolve them in the wild.

> 2533274813317074;2:
> Issues with Challenges are known and being worked on
> https://support.halowaypoint.com/hc/en-us/articles/360039997432-Halo-The-Master-Chief-Collection-Known-Issues
>
> > Challenges: The team is currently investigating player complaints around challenges and is working on a build update to address the following issues:
> > - UI is displaying less progress than players have when rebooting the game. - Progress on Challenges is not transferring between Xbox One and PC.Once these issues are resolved internally, we will be preparing a game update to resolve them in the wild.

Neither of these are the issue I’ve run into unfortunately. My challenges aren’t progressing during gameplay on a single system in a single play session. No rebooting or changing platforms in-between.

I have narrowed it down a bit, as one challenge did progress that wasn’t before. It seems challenges for getting kills on specific enemy types or with specific weapons are not progressing in Firefight or ODST’s Campaign. But they are at least working in PvP and Reach’s Campaign. The challenge for completing a Firefight game after getting a spree only progresses if I am on the spree when the game ends, not if I get the 35 kill spree, die, then the game ends on a lower streak.

Ok, I would maybe file a bug report about this on the Halo Support site: https://aka.ms/HaloSupport