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• 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

When syncing a folder from an incoming share without download permission, the client will report errors and fail to sync.

Steps to reproduce

1. User a creates a share named read-shares to user b and gives only read permission (no write and no download)
2. User b try to share read-shares folder
3. User b gets error when the client try to download the content of the files inside read-shares folder

Expected behavior

The folder is not synced.
The user gets the information in the main dialog and the settings dialog shows the folder as unselected with a short explanation message.

Which files are affected by this bug

n/a

Operating system

Linux

Which version of the operating system you are running.

Debian12

Package

Appimage

Nextcloud Server version

28.0.1

Nextcloud Desktop Client version

3.11.0

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 Enabled

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