Could you please check if you are trying to import images in Lightroom using the "Copy" option, not the "Add" option.
Also try importing the images again using the copy option.
It's under "copy".
Can you show us a screen capture of what the problem looks like in Lightroom?
If you're seeing something like this in your Folders Panel
Then your Import Destination was set incorrectly. Here I Imported FROM the card TO the card. The images will appear and be workable only if the card is connected to the computer.
Check your destination when you import next time.
To verify, look at your card contents in the finder. You should see the original camera generated folders (137_0506 / 138_0507) and the new ones generated by your import. (2016...)