[Bug]: Statusbar icon inconsistent with displayed state concerning VFS sync

[pelzvieh]

⚠️ 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

The status bar icon is displaying a yellow exclamation mark, the tooltip reads "a problem was encountered":

At the same time, the settings dialogue for virtual file system reads "all synced":

It remains unclear if there's any problem, or what kind of problem this might be.

Access to VFS structure is possible, though performance and stability varies.

Steps to reproduce

1. Upgrade Nextcloud desktop client to VFS edition, version 3.14.1
2. Enable VFS sync
3. Wait a while

Expected behavior

If there is a sync problem with VFS, display information about this problem in the relevant tab of the settings window. If there is no problem with VFS sync, display a green tick as statusbar icon.

Which files are affected by this bug

Unclear, if any file is affected.

Operating system

macOS

Which version of the operating system you are running.

15.0.1

Package

Official macOS 12+ universal pkg

Nextcloud Server version

29.0.7

Nextcloud Desktop Client version

3.14.1

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

Updated to a major version (ex. 3.3.6 to 3.4.0)

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

I'm happy to share debug logs with authorized personnel, but I don't like to see data about server names, file structure, etc. on a publicly available bug report. One entry that occurs repeatedly strikes me odd:
2024-10-09 11:52:30:240 [ warning nextcloud.gui.macos.fileprovider.xpc.utils /var/folders/yr/9dx0mtfj7kdf4725tmcz6md80000gp/T/macos-26087/src/gui/macOS/fileproviderxpc_mac_utils.mm:222 ]: Error getting remote object proxy Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service created from an endpoint was invalidated: failed to check-in, peer may have been unloaded: mach_error=10000003." UserInfo={NSDebugDescription=The connection to service created from an endpoint was invalidated: failed to check-in, peer may have been unloaded: mach_error=10000003.}