I have a Sony a92 with two ScanDisk SD Extreme Pro cards installed. When I select my camera to download the images via a USB type C cable to my Win10 PC; Bridge shows two copies of each image with a common .ARW image name in the preview window. When the download is completed each of the duplicate images now appears in the new days file folder with a comon image name plus a second image with the same root name with a "-1" appended.

FWIW: This started with one of the updates within the past six months to one year time frame. It was simply annoying at first and I would go to tge extra work of going through each new folder and delete the duplicates.

Screen shots of sample images during the download process

I figured that someone at Adobe would certainly have found this problem during Beta Testing; but, NO, IT'S STILL DOING IT!!!! Please fix it!