Could you please make sure that you are working in the correct catalog.
Click on File > Open Recent , and check for the catalog.
Also please check if you have selected " All Photographs " in the Library module.
Thank you. I was okay on them. I tried import on the lower left corner and they came back. Another question if I may. I have a folder and two sub folders . The photos in the sub folders show up there and in the main folder. It's very confusing! Is there a way to make them only appear in the sub folders? I have many many more with multiple subs. I probably should have said I am operating in window 10.
Sent from my iPad
In the library module, go to the library menu and uncheck the option to "Show photos in subfolders". That will solve the "problem" of photos showing up in the main folder.