So, I went to clear out some xbox 360 saved game data and the rest of my games disappeared too.

I think I've figured it out. You need to clear the Xbox 360 saved game data on your XBone. On your XBone go into Settings > System > Storage. Select "Clear local Xbox 360 storage" and it will ask you to confirm. The message indicates that it will clear any
360 save games that are not backed up to the cloud. So beware. After I selected the option on XBone went dark and restarted. Aftwards I was able to launch the game successfully.

Hope this helps.

What I did is went to manage game and saved data deleted CODS saved data and hard reset my Xbox cleared cache and it works now.

I'd already tried downloading the game to the internal disc, but that didn't make any difference. What I have done is delete the saved data from a previous 360 game, which seems to have cleared enough data from the cloud to let me scrap a new save game
file. There's barely any space there though. I've tried putting some old 360 discs in the one, to see if I could access the old saved game data in the cloud so I could delete it and free up some more space, but no saved data was listed. I've already deleted
the local 360 saved games. Can you think of another way of clearing some space in the 360 cloud? I think I still have the 360 in the attic.

Hi guys, can you help me out? I checked my 360 storage for the game saves and I've noticed that it disappeared for some reason. Only most of my games that have the saves disappeared. Halo saves is still here and few other games still have the saves. I tried
to back it up in Cloud and I hope the saves can be in the Cloud. What is the cause for the game saves disappear. I noticed the game saves for my other profiles existed.

I had the same issue. What I did is went to manage game and saved data deleted CODS saved data (DO NOT delete your data) and hard reset my Xbox cleared cache and it works now.