After I tried out the Advanced Tutorial I lost all mission progress, skulls, and my Data. It has been a week sense this has happened and it has not been restored.
I also have a similar problem, I can see my campaign stats in the Halo app and Waypoint but the game says I haven´t played any campaign misison and has cinema locked too. I played tutorial in march or so and I didn´t get that issue, it is something that happened this week or last week. Help us please…
Edit: Skulls are gone too, as well as the secondary and bonus objectives. In Waypoint and Halo app they´re unlocked, just locked in the game (both Xbox One and Windows 10).
Please see the pinned thread at the top of this forum, it’s a known issue that 343 are working on. Feel free to reply there