[Bug]: Windows Application don't sync all files

[francofischer]

⚠️ Before submitting, please verify the following: ⚠️

• This is a bug, not a question or a configuration issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server and Desktop Client are up to date. See Server Maintenance and Release Schedule and Desktop Releases for supported versions.
• I agree to follow Nextcloud's Code of Conduct

Bug description

In our organization we have our own server running Nextcloud 23.0.5 in an Ubuntu 20.04 Server with MariaDB. All the users use the Windows Client to keep synced all our files.
Today I find that one user don't see any file in a shared folder, but if the user login in the web application and navigate to this folder he can see all the files. Also, when the user create a new folder in the windows explorer, the Nextcloud (3.5.1) client start to sync all the files inside this folder.
I force the sync in the client, but nothing happend.

Steps to reproduce

1. I found a folder without any files in the windows explorer.
2. Check that this folder have files in the web browser.
3. Force the sync in the desktop client (nothing happend).
4. Create a folder/file in this empty folder.
5. Windows client start to sync all files inside this folder.

Expected behavior

I expect that the user see the same files in the windows explorer and the web browser.

Which files are affected by this bug

\Compartida\Proyectos\Lyrtron\Nexum\Desarollo\Mediciones\Mediciones con NRFConnect\Prueba Interna de Prototipos\FF\2021-06-11

Operating system

Windows

Which version of the operating system you are running.

Windows 10

Package

Other

Nextcloud Server version

23.0.5

Nextcloud Desktop Client version

3.5.1

Is this bug present after an update or on a fresh install?

Fresh desktop client install

Are you using the Nextcloud Server Encryption module?

Encryption is Disabled

Are you using an external user-backend?

• Default internal user-backend
• LDAP/ Active Directory
• SSO - SAML
• Other

Nextcloud Server logs

No response

Additional info

No response

[konradbr]

+1 I have the exact same problem. Sometimes a modification or rename of the concerned folder triggers a re-sync.

NextCloud Windows Client v. 3.4.1
NextCloud Server v. 22.2.6

[konradbr]

Updated NextCloud Server to v. 24.0.1
Will update this thread if the error still occurs.

[konradbr]

Under NextCloud Server v. 24.0.1. and Client v. 3.4.1 the issue persists. Renaming the folder on the server did not work. Only way to sync to client was to create a new folder on the server and move the contents of the folder not syncing to the new folder.

[camilasan]

@francofischer @konradbr We will really need logs for this issue.

[aalsamman]

+1 I have the same exact issue. Tried with multiple windows clients V3.5.x V3.6 and the issue is persistent.
Server version 24.0.6
Windows 11

Update: server version updated to V25 and the issue is persistent.

[konradbr]

@camilasan when I see it happening again I'll send you some more detailed data. I've got own servers running now.

[aalsamman]

@camilasan @konradbr @francofischer I have checked out the logs of the client, and in all the folders that I have issues with, I found such a line

2022-11-02 17:54:42:889 [ warning default C:\Users\sysadmin\AppData\Local\Temp\2\windows-11567\client-building\desktop\src\csync\csync_exclude.cpp:438 ]: System exclude list file could not be read: "C:/[PATH]/.sync-exclude.lst"

I fixed the issue through: I went to the settings -> edit ignored files -> clicked on Remove although the list is empty -> save
This triggered a new sync and then the client showed an error that it couldn't sync the .sync_execlude.lst but then it synced itself again and the issue fixed!!!!

Now, the client is completely normal and is syncing as usual!

[gabgaud]

I had the same problem recently. The names of some of my files contained characters that were not allowed in the Windows client. Once renamed, the files synced.