These Pictures could be missing in your Lightroom catalog
Connect your Memory card to the computer
From Menu bar in Lightroom select Library>>Find all missing Photos.It will show all missing pictures in Lightroom
Then Locate these Pictures Adobe Photoshop Lightroom Help | Locate missing photos
Also Make sure whenever you import in Lightroom from a memory card you select Copy
Because if you select Add, you need to leave your card connected.
Let us know if that helps
still no luck. I see them when I select import but can't locate folder they went to. Never had this issue before. Is there anyway to override the already import it tells me when I try to import again, the grayed out ones