Curious as to what showes up in windows explorer, assuming you use windows, when you plug the camera in, if anything. Maybe you need a device driver. Wild guess. I don't use windows on a regular basis so have to blow the cobwebs off old memories.

I always use the SD card in my 7D2 just so I don't have to remove the CF card. Defective design. Pins should be on the card like an IDE hard drive IMHO. My CF card is set up as overflow and as such has never been written to.
Rod
That is my typical 7D2 card setup also. SD cards are fast enough now anyways where I think it is ready to just be the standard for Pro bodies and the lower models are only using SD anyways.
That aside, I would like to be able to import 5Dc photos into Lightroom 6 using the usb cable, thus not having to handle the CF card.



