Campaign Playlists Not Saving Progress

With both Halo 3 and Halo CE, my progress does not seem to be saved after I complete a mission in a campaign playlist, nor are checkpoints saved. I just completed Sierra 117 for example, the first mission of Halo 3, in the Normal Playlist to test. After completing the mission, I saved and exited. When I go back to the Halo 3 campaign screen, there is no “Resume” option, though it is registered that I’ve completed one mission in the Normal playlist.

Same for Spartan Ops in Halo 4.

Did you have a solution for this? I’m Trying to complete the Halo 3 Playlist and my progress is not saving :frowning: