When I'm importing from SD card as I normally would, Lightroom has lost its ability to bring in the DNG files. RAW files are not imported, but duplicates of JPGs are created. I try to bring in only the DNG files manually, and instead the JPEGs show up.
In the import window I see both the DNG and JPG files. I tried manually copying the files from the card onto the computer, then import from that location instead, with the same result. Two files get brought onto Lightroom, but it's literally a JPG and a copy (which gets named with the same file appended by -1).
Update: I ran a card with a medium sized number of photos in it and it imported fine. Then I used a second card (freshly formatted in camera), with only a few shots, and the problem returned. It's very inconsistent at the moment, and the only reason I can easily tell there's a problem is because I shoot JPEGs in B&W mode, so when both files show up B&W, I know the DNG wasn't brought over.