Somehow there is a message "Sorry, this folder is private" on the owners profile page in the buddydrive folder.
The folder was created with "My courses" share. As you see from the screenshot it shows just uploaded file, but after refresh the folder's content is hidden.
Also on the root page there are two links under folders names "Link | Share". I guess Share has to change the sharing options, but it's linked to the current page.
Well the my courses option is not working as of now due to its own limitation .All other options will work except that .
Well the sharing feature is by buddydrive itself .
Please contact the buddydrive plugin support for the sharing feature .