Folders view in collections shows nothing when film rolls are on network share

[ghost]

Describe the bug

On latest version. I have added a network share's photos (recursive): \\SomeShare\Albums
All the albums are added as Film Rolls.
But when changed to folder view, there are no folders showing.
All the film rolls show their correct subfolder on the share when hovered, i.e \\SomeShare\Albums\Roll0001\fuji scans
But not able to see anything in 'folder' view of collections.

Previously when they were on a local drive with a drive letter the folders all showed in proper nested format.

Steps to reproduce

1. Go to 'add to library'
2. Add share root folder with recursive set.
3. wait for all to finish.
4. switch collections from Film Roll to Folder.
5. Nothing.

Is this intended or a bug with using collections on network shares?

Expected behavior

darktable should show the main share folder and the folders and subfolders for rolls

Where did you obtain darktable from?

downloaded from www.darktable.org

darktable version

4.6.1

What OS are you using?

Windows

What is the version of your OS?

Windows 10 Pro

Please provide additional context if applicable. You can attach files too, but might need to rename to .txt or .zip

Film Rolls:

When Folder Selected: