Everything erased

So I’ve played a fair amount of the campaign playlist on this game. I’ve done at least a couple from every campaign, including the 45 mission Master Chief saga one. Then a couple days ago, I finish another playlist and as I return to the main menu, the game tells me the active profile has signed out, even though 1: I didn’t tell the game to sign me out and 2: I was still listed as signed into my gamer tag on the main menu. I then realized that my logo was different. I then, to my horror, discovered that everything had been reset. Everything was gone; it said I completed 0 playlist, 0 campaign missions, even the colors of my Spartans from each game for multiplayer had been reset to the default colors.

This is extremely frustrating. It also makes me mad that I know all I can do is complain on here, but nothing will bring everything back. Yesterday I started the long trek of making up lost ground and started the “Flooded” cross game playlist. I completed the first 4 missions and saved and quit. Then, I get on today and I go to resume the playlist aaaaaaaaand it starts me at the 2nd mission. What the hell gives??? It is super frustrating especially cause it means I have to do the Library mission from Halo: CE again (which seems to just drag on and on and on). It also now lists 3 random playlist in the cross game category as being almost completed; i.e. 4/5 missions complete or 3/4 or something like that (being 1 mission short of being complete) even though I had them 100% complete before I randomly got reset.

I assume I am not the only having these issues or similar issues. But it is now August, how is this stuff still happening? How is this still a problem? And I think I know the answer to this, but is there literally nothing I can do? Nothing to get my stuff back? Or to insure that when I save and quit in a playlist that I’ll be able to pick right back up where I left off?

Frustrating.

I am experiencing the same issue with playlists. Get so far through, Save and Quit, click resume and it either loads the very first mission or 2nd mission only!

This added with the loss of my legendary Halo 2 playlist progress from the patch, makes for a very annoyed Halo fan.

This playlists are definitely bugged. I completed Like A Fine Wine, getting 10/10 in the LASO playlist for Halo CE, and got no achievement. The blue bar shows all missions done, and says 10/10. It says I can resume on T&R. Wth?