I have a Nikon D810A. I was told that I need to upgrade to Lightroom 6 in order to process the images. I have done so, I also updated to the latest version 6.2.1. I have it installed both on PC desktop and a Mac notebook. It works on the Mac, but does not work on the PC. I am experiencing the same problem with Adobe Raw Converter 9.2. It processes the files on the Mac, but does not recognize them on the PC. Adobe's customer support really sucks, so I am hoping to find an answer and solution here.
Could you please let me know , what is the exact issue.
Are you not able to see the previews of the images in the import window ?
Or are the images not getting imported from the Camera/Card, also I would suggest you to please copy the images once from the Camera to Desktop once and then import.