Please post your System Information as Lightroom Classic (LrC) reports it. In LrC click on Help, then System Info, then Copy. Past that information into a reply. Please present all information from first line down to and including Plug-in Info. Info after Plug-in info can be cut as that is just so much dead space to us non-Techs.
Also, please post a screenshot if your Import screen
And, what camera?
So nothing odd about the camera. Not some camera storing photos in a propriatory DNG format, so not a non total ADOBE spec DNG issue. Only a very few cameras doing that. I think some Lica, and a Hassabald unit in a Drone.