If you are playing games with Cloud Saves on more than one device through the Epic Games Launcher, you may run into Cloud Save conflicts. This usually happens when you played the game offline on one of your devices.
If there is a conflict, you will be prompted with the following window:
If you see this pop-up, make sure that you select the newer file to keep your latest saves. If you select the older file, you could lose progress. Any progress lost is not recoverable.