As I described in another topic I had to resync two Google accounts yesterday to get around a database corruption issue but today when arriving to work I noticed that everything had finished syncing but I had 3,963 errors. These all seem to correspond to 0KB files in the format:
~.$filename.insyncdl
If I delete all of these files the errors go away. The error that was reported was "Unique Constraint failed, “filename”.parent_id, “filename”.name.
Seems I spoke too soon. All of the errors came back shortly after clearing them.