VDP Restore Client, the partions is invalid or not supported

Hi

Started to use VDP in my lab environment, the problem is with the file level recovery. When I try to mount a backup in the restore client I get "Failed to get disks: The Partions is invalid or not supported" The server runs on Windows Server 2008 R2 and have disk.enableuuid=false. Is there any solution for the problem? And can I only use file restore with the webbased client?