If you want to try backing it up periodically, you can try the steps here.
Hopfully it’s just a matter of the progress being lost, and not that the progress files are invalidated (like the game save files are).
When I get home tonight, I’ll copy my backups in and see if the game accepts them.
EDIT: I deleted the existing campaign tracking files, checked to see that it was reset, and then copied the back up files in. When opening the campaign section of the game, the progress was still present.