macOS Tahoe 26.5.1: Virtual Files reports "Everything synced" although server changes are not downloaded

[lehrer0815]

⚠️ 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 have searched for 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

Environment

• Nextcloud Desktop 3.30.7
• macOS Tahoe 26.5.1
• Nextcloud Hub 10 / Server 32 (Hetzner Storage Share)
• Virtual Files (File Provider) enabled
• notify_push enabled

Problem

The desktop client reports "Everything synced", but files uploaded via the web interface are not downloaded to the Mac.

Observed behaviour

• Uploads from macOS to the server work correctly.
• Downloads from server to macOS do not.
• The tray icon sometimes changes to the warning triangle.
• The activity view occasionally stops updating correctly.
• notify_push is installed and enabled.
• A debug archive is attached.

I have already verified that notify_push is enabled on the server and that brute-force protection is not the cause.

The exact version in which the issue first appeared is unknown. It was noticed while using the current 33.0.7 client.

[debug-archiv.zip](https://github.com/user-attachments/files/29840041/debug-archiv.zip)

Steps to reproduce

1. Upload a new file via the Nextcloud web interface into a folder configured as "Always keep downloaded" (Documents).
2. Wait several minutes.
3. The file never appears locally.
4. The desktop client still reports "Everything synced".

Expected behavior

Files uploaded via the web interface should be downloaded automatically and the sync status should reflect the actual state.

Which files are affected by this bug

test 3.rtf

Operating system

macOS

Which version of the operating system you are running.

tahoe 26.5.1

Installation method

Official Installer for macOS 13 and later

Nextcloud Server version

Nextcloud Hub 25 Autumn (32.0.9)

Nextcloud Desktop Client version

33.0.7

Did this occur after an update or on a clean installation?

Minor version update (i.e. 33.0.0 → 33.0.1)

Are you using the Nextcloud Server Encryption module?

No

Are you using an external user-backend?

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

Nextcloud Server logs

No access to server log files (managed Hetzner Storage Share). Desktop debug archive attached.

Additional info

No response

[pelzvieh]

I can confirm this bug running server 34.0.1, with SSO-SAML-Backend, creating folders on the server or other clients never gets synced. Creating the same folder on the MacOS client results in the virtual folder displaying a cloud with an exclamation mark, without any hint on how to resolve the conflict. Renaming the folder on the MacOS client results in the renamed folder appearing on the server, at the same time vanishing (!) at the client.

I found that it's quite easy to miss some unexpected configuration step from setting up notify_push, so it might not actually be working. I didn't find a way to check, and I didn't see any error or warning message from the client at a time when I know now that notify_push definitely has not been working.

[koenbokern]

I am experiencing such a problem on Windows since client v33, but your issue may relate to #9688 .

[pelzvieh]

I am experiencing such a problem on Windows since client v33, but your issue may relate to #9688 .

Might be, yes. But issue 9688 is specifically about files created with the web UI. My files remain invisible on MacOS even if I create them in the Android app 🤷