On my node, I switched to the Boltdb version using the link from this thread:
It has fixed the issue. This tells me that if I had blown away my database, it also would have fixed the issue. I don’t, however, want to do that.
Is there any way to map the .ldb database file to the folder share, so I can just remove the file that goes with this messed up folder? That way I can get back on standard Syncthing without having to rebuild my entire database.