The other day, I popped my SD card into my MBP and up came LR6 as is typical. I clicked on Import and everything displayed exactly as is normal - all the photos that had already been uploaded did not show and the ones shot a few days previously I had not uploaded did show except for the most recent ones from the same day. I checked the card using the Finder and sure enough the files were there. I Ejected the card, and restarted LR.
Strangely, upon Importing again, the same thing happened, but now there were two "Devices" listed, both the same SD card with the same photos, except the first still did not show my latest files. The second I could eject (and did); the first, with the fewer photos, would not eject (right-click on the device in LR > Eject). Oddly, the device only shows in LR and not on my Desktop, so it's not the MBP that's at odds here, but LR.
Reinsterting the SD card and working from the second (almost identical) SD "Device" listed, I could Import the latest images that were not showing on the first SD "Device" listed. Strange, but true.
Any thoughtS?