I started game on my laptop: no issue
Moved the same game files to desktop machine: no issue
Moved the save game files back to laptop machine: received warning that some zone are missing
Note: I only copied that single save file and not all of other autosave or quicksaves.
I am not sure if there really are somethings missing, my base seems fine from the looks of it. I had a building in Heft, that might have gotten bugged. That was empty and I don't need it anyway.