Help, saved game disappeared

@LILBRO2KBABY  The complicated way, I mean it's not all that complicated but does require more steps, starts with redirecting your Documents folder to the local location, as in, C:\Users\your username\Documents, with no OneDrive in the file path.  Here's how:

https://www.tenforums.com/tutorials/74952-move-location-documents-folder-windows-10-a.html

You may need to first pause syncing and/or cancel the current sync:

https://support.microsoft.com/en-au/office/how-to-cancel-or-stop-sync-in-onedrive-4885c27e-3d89-4d69-be75-2646c71367d3

You'll also need to stop OneDrive from syncing the contents of Documents:

https://support.microsoft.com/en-us/office/choose-which-onedrive-folders-to-sync-to-your-computer-98b8b011-8b94-419b-aa95-a14ff2415e85

The problem is, sometimes Sims 4 will still read the Documents folder within OneDrive even after you've completed all these steps.  Once it's "chosen" a location, so to speak, only uninstalling and reinstalling the game will change this, I mean if redirecting Documents doesn't have an effect.

The other fix would be to create a new admin Windows account on your computer and make it a local account, as in, don't sign into OneDrive.  Sims 4 should use that account's Documents folder automatically.  It's easy to move files between accounts: just drop anything you want to move into C:\Users\Public.

Before doing anything, make sure you have a backup copy of all your Sims 4 content just in case something gets deleted along the way.  It shouldn't, but things do happen, and at the very least, having a backup means no moment of panic while you look for a file that may or may not have disappeared.