Owncloud client deleted my files

[lmyslinski]

Steps to reproduce

Yesterday I've moved all of my files from gdrive to owncloud. The files were successfully uplodaded. Today I've rebooted the server on which owncloud is running, shortly after the reboot I got a notification from owncloud desktop client that the folder with all the data was deleted.

client sync log:

#=#=#=#=# Propagation starts 2024-09-21T08:32:53Z (last step: 707 msec , total: 707 msec)
| personal/gdrive | CSyncEnums::CSYNC_INSTRUCTION_REMOVE | OCC::SyncFileItem::Down | | 1726870069 | 66edf24506e03 | 0 | 00053597ocea5qnecdjo | OCC::SyncFileItem::Success | | 0 | 0 | 1726870069 | |
#=#=#=# Syncrun finished 2024-09-21T08:33:02Z (last step: 8850 msec , total: 9557 msec)

The server log does not have this operation. The last activity is reported 16 days ago.

The not synced tab is empty.

Expected behaviour

Tell us what should happen

Actual behaviour

Tell us what happens instead

Server configuration

Login as admin user into your ownCloud and access 
http://example.com/index.php/settings/integrity/failed 
paste the results into https://gist.github.com/ and puth the link here.

No errors have been found.

config_report_20240921.json

This is most likely a client issue so I've skipped most of the additional server details.

Client configuration

Browser: Brave

Operating system: W11

Logs

Web server error log

owncloud.log

ownCloud log (data/owncloud.log)

Insert your ownCloud log here

[lmyslinski]

Thankfully, this was an outdated version of my files so I don't need to recover them - but the windows trash is empty and seems like nothing was ever present on the server, so this is very problematic data loss.

I've foolishly deleted all the data from the gdrive trash, having confidence that after all, I have all the data physically on my hard drive, only to have it wiped clean by Owncloud.

I really need to understand why this happened.

One potential reason might come from gdrive itself - I've moved the files via a move operation in the file explorer - there is a chance that gdrive itself malfunctioned and was still "managing" these files, as it detected the deletion on the server it proceeded with removing them locally, but it's a stretch

[iasdeoupxe]

Client tracker (this is the server one): https://github.com/owncloud/client/issues

This could be relevant

Synchronizing the same directory with ownCloud and other synchronization software such as Unison, rsync, Microsoft Windows Offline Folders, or other cloud services such as Dropbox or Microsoft SkyDrive is not supported and should not be attempted. In the worst case, it is possible that synchronizing folders or files using ownCloud and other synchronization software or services can result in data loss.

https://doc.owncloud.com/desktop/5.3/appendices/troubleshooting.html#isolating-other-issues