Yeah I'm really not sure, except that I definitely did not receive any communication about what happened (this was back in ~May this year). I also did not proac

Yeah I'm really not sure, except that I definitely did not receive any communication about what happened (this was back in ~May this year). I also did not proactively reach out to Support (busy that day, had backups, and it was fixed by the next day so). Also to clarify; while its technically possible that the Cloud Sync application on my Synology NAS could have done it; it can be configured with bi-directional sync and is fully authenticated to commit files back to Google Drive and delete existing ones. I have it set to "Download Remote Changes Only" and always have; and while a software bug there could have caused it, the files that re-appeared were long, long deleted to me, everywhere, and I didn't have copies of them on the NAS. Very nice to have them re-appear for a day and get pulled down for actual long-term backup locally though!