Suddenly, getting corrupt icons for import

Thanks for any help. All of a sudden, and with no changes on my part, I am getting this attached message and "question mark" icons on my images. This happens at import and when viewing sessions. I do not have corrupt files, as I have used several different camera cards, and every image and every file shows up fine. But not on Capture One 23, and I have all the updates. I have changed nothing on my MacBook Pro. Can someone tell me how to get rid of this? Thanks. See image.