New photos won't import, thumbnails greyed out
In Lightroom Classic CC, which I updated tonight, when I try to import new photos, some of the thumbnails will become greyed out, as if they were duplicates, and I can't import them. I know there was a thread on this issue previously, but I can't find it, and I was hoping the update would fix it. It doesn't appear to have done so. More than half of the photos on my card are unable to be imported. It appears to be random. Has a fix been found?
This is what my screen looks like. Please note: These are NEW images, they have never been imported, plus you can see that "Don't Import Suspected Duplicates" is not checked.

