Problems with save files.

My save files occasionally revert to a state from half a year ago. I didn't play for a long time after the release, waiting for patches. Now I'm slowly playing through the campaign, but sometimes, instead of the current progress, the game loads a save from the past. I have to restart the game, and sometimes I have to restart the save synchronization process several times. And then, seemingly, everything is fine again, and the save files are miraculously "found."
Despite this, the dynasty's overall progress remains consistent, without any rollbacks.