[Bug]: macOS File Provider "Download Now" on Folders Authentication Alert

[AndyXheli]

⚠️ 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

Only happens on Folders

Steps to reproduce

1. Right click on the Folder
2. Click Download Now
3. Error

Expected behavior

Should Download
...

Which files are affected by this bug

Folders

Operating system

macOS

Which version of the operating system you are running.

26.0.1 (25A362)

Package

Official macOS Virtual files 12+ universal pkg

Nextcloud Server version

32.0.1 RC2

Nextcloud Desktop Client version

4.0.0

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

Updated to a major version (ex. 3.16.3 to 3.17.0)

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

Additional info

Seeing this Warning too bit i not don't see anything below

[Rello]

Hello @AndyXheli
you are correct. this is the standard macOS option (was it added in 26)? I have the same.
the Nextcloud menu options (lower in the menu) are working.

we will have a look

[AndyXheli]

Hello @AndyXheli you are correct. this is the standard macOS option (was it added in 26)? I have the same. the Nextcloud menu options (lower in the menu) are working.

we will have a look

I believe it was also there as an option before 26

[i2h3]

Surprisingly, the new logging is the culprit. There is some low-level Swift error when trying to cast the detail arguments to different types. It looks like there is a problem with the NSFileProviderRequest handed over by the system to the enumerator request method in the file provider extension implementation. It apparently is not correctly mapped to Swift (underlying Objective-C object contains a nil reference for a non-optional value).