Additional Files on My Passport Ultra are not accessible

I backed up two different devices, one set gave me the name of the PC and I was able to retrieve them. The other set of files are listed on the My Passport Ultra as Additional Files, however I cannot access them as it does not list a PC for them. How can I retrieve these? The additional files are in a gray shaded box

Hi Trains,

Maybe you should try contacting WD’s Technical Support about this.

To Contact WD for Technical Support

The link below will allow you to call support if you are having trouble with the form.