Z6 NEF files appear without Preview on Adobe Bridge import

My computer operating system is the most current version of Windows 10 Pro. I typically remove my Sony XQD card from my Nikon Z6, and then use a Sony card reader to import my raw files to Adobe Bridge (Ver 11.0.0.83, part of my Adobe Photography subsciption). My problem is that images of the raw files do not appear - ony the icon and filenames appear. So there is no way for me to select which files I want to import unless I set my camera to record each photo in both NEF and JPG formats. I've read that others have this same problem, but so far I've not seen any response related to correcting the problem. Can anyone help? Thank you.