It looks like the same error I and the others have in that other thread. Every detail of yours looks the same as my log files, and theirs. I hope there's an easy fix, given that this isn't just an annoying bug, but people's entire saves being nuked.

I also have the same problem, on the exact same game version (but on Linux). "Corrupt map. Unknown decorative ID: 16466" when I try and load my save, and the autosaves all say the same thing. I had some sort of disk error that didn't cause any problems using my computer until the next day when I ...