I'm Unable To Sync Any Of my Cloud Save games, causing none of my games the played online ...

I'm having the same issue. For me its the cloud sync that causes the crashing. When I re-install it and start it up again I cancel the cloud sync and it runs just fine. I can't find any fix for it or any way to delete cloud save data for PC game pass games.

Hey ScarletPigeon

Thank you for taking the time to post this on the Xbox Forums. We understand that you are seeking a way to access specific save data in the Cloud storage.

While you're playing a game, game data is stored on your Xbox One console. When you leave a game, your data is stored to both your hard drive and the cloud. However, any save data stored in the Cloud is automatically overwritten by any new save data sync.
Syncing data pretty much happens automatically.

This is depicted in the
Xbox One cloud game saves FAQ.

I'm sorry about any confusion or turmoil this might have caused.

Hey 3TIMES

Thank you for taking the time to post this on the Xbox Forums. We understand that you are seeking a way to recover your save data.

If you have chosen the option to Delete everywhere from under the Saved data in the
Manage game & add-ons menu, then you will be unable to recover your save data.

This options removes your saved data from this console, the cloud, and all other consoles you play on, so unless you have a console that you have used before, and was not connected to the Xbox Live [the internet] you would be unable to sync that save
data to the cloud.

You can find this information in the
Xbox One cloud game saves: FAQ.

I'm sorry about any confusion or turmoil this might have caused.

I have done this, that was the "A Partial Console Reset (This also removed all my saved games and despite cloud sync being on, my saved games were unable to be restored and were in fact not even there)." that I spoke
about in my OP.

It did not solve the issue, and while it kept my installed games, it wiped all saved games from the console (which I was then unable to recover due to the cloud apparently not working).

Can you see if there is any update for the game available in the Windows 10 store? If the game version is not in sync with the latest, it might be causing issues with the sync from the cloud.

And are you syncing a save from a console version, or a different PC, or is this an issue with uploading your local save to the cloud? Curious if we're troubleshooting actually transferring saves to different devices, or a general sync issue.