I can see if I can get a video of it, but I’ve noticed that come of my pictures don’t have a pick/reject button showing up in the UI on hover. It’s not a specific place on the screen, and it’s semi-random.
I noticed it a few days ago, it was one picture in the middle of lots of others that worked fine. Now it’s two next to each other while the others work fine to the left and right of them on the filmstrip.