Joplin syncing deletes content of the local folder

[martafelcini]

Hello

I have recently (1 month ago) downloaded on a WIndows 64 bit machine the version of joplin available here
https://joplinapp.org/
As I can understand from the log file available in
.config\joplin-desktop
I am using version 34.

Everything has worked out fine so far (using Joplin to take notes practically daily for a month) until today, where while syncing, for reasons I cannot identify, the program seems to have erased all other files residing in the same folder as the joplin generated files.
Here below (*) an extract of the joplin log file, where there is indication of an error

2021-01-25 11:11:27: "Error: Fail-safe: Sync was interrupted because 97% of the data (106 items) is about to be deleted. To override this behaviour disable the fail-safe in the sync settings.. Path: C:\Users\marta\Documents\joplin"

after which all the folders and files in the Documents folder have been deleted, other than for the joplin folder.

Any idea what has happened?

Thank you,
Marta

(*)
2021-01-25 11:11:00: "Settings have been saved."
2021-01-25 11:11:00: "SearchEngine: Updated FTS table in 643ms. Inserted: 1. Deleted: 0"
2021-01-25 11:11:18: "SearchEngine: Updating FTS table..."
2021-01-25 11:11:19: "Saving settings..."
2021-01-25 11:11:19: "Settings have been saved."
2021-01-25 11:11:19: "SearchEngine: Updated FTS table in 352ms. Inserted: 1. Deleted: 0"
2021-01-25 11:11:26: "Running background sync on timer..."
2021-01-25 11:11:26: "Preparing scheduled sync"
2021-01-25 11:11:26: "Starting scheduled sync"
2021-01-25 11:11:26: "Sync target info:", "{"version":2}"
2021-01-25 11:11:27: "TaskQueue.stop: syncDownload: waiting for tasks to complete: 0"
2021-01-25 11:11:27: "TaskQueue.stop: syncDownload: Done, waited for 0"
2021-01-25 11:11:27: "BasicDelta: Report: {"timestamp":1611335370342,"older":0,"newer":4,"equal":0}"
2021-01-25 11:11:27: "Error: Fail-safe: Sync was interrupted because 97% of the data (106 items) is about to be deleted. To override this behaviour disable the fail-safe in the sync settings.. Path: C:\Users\marta\Documents\joplin"
2021-01-25 11:11:27: "Operations completed: "
2021-01-25 11:11:27: "updateRemote: 1"
2021-01-25 11:11:27: "Total folders: 13"
2021-01-25 11:11:27: "Total notes: 22"
2021-01-25 11:11:27: "Total resources: 17"
2021-01-25 11:11:27: "There was some errors:"
2021-01-25 11:11:27: "Error: Fail-safe: Sync was interrupted because 97% of the data (106 items) is about to be deleted. To override this behaviour disable the fail-safe in the sync settings.. Path: C:\Users\marta\Documents\joplin"
2021-01-25 11:11:28: "DecryptionWorker: cannot start because no master key is currently loaded."
2021-01-25 11:12:06: "Attaching C:/Users/marta/.config/joplin-desktop/tmp/5e44aebdb49b4368a633d91bca525fe6.png"
2021-01-25 11:12:17: "SearchEngine: Updating FTS table..."
2021-01-25 11:12:18: "File was attached."
2021-01-25 11:12:18: "Saving settings..."
2021-01-25 11:12:18: "Settings have been saved."

[laurent]

The log doesn't show that notes have been deleted. On the contrary, it shows they haven't because there's a fail-safe that prevents this. If they have been deleted, it happened afterwards either because you've disabled the fail-safe or for some other reason not visible in this log.

The common reason for having all local data deleted is because you've changed or entered an incorrect WebDAV or Nextcloud path.