Myself and my sister have just completed Halo CE and Halo 3 heroic campaign playlists for the season challenges but niether playlists completion has affectef the challenges. Same goes for saving a forge map.
We just sunk 3 days into this - what gives?
The challenges are broken right now (at least the PvE ones), don’t try them or you are going to lose all your progress.
Hey folks, issues related to this are known by 343 and they are investing, but please do make sure and file a bug report about this on the Halo Support site: https://aka.ms/HaloSupport