Unable to create contact sheet (images in filmstrip appear to be greyed out in the Print Tab)

Hi everyone, 

I have a student who is unable to create a contact sheet. Her photos are there and the source is locatable. She is able to edit her photos in the develop tab just fine and export them with no problem, so I know the photos are there! But when she goes to the Print Tab, all of the images in her filmstrip appear to be greyed out and they are unselectable to then put in a contact sheet. I included an image of a photo in the develop tab to show how normal this tab appears and then a photo of what happens when we go to the print tab. I've never had this issue before and can't seem to fine any troubleshooting help! Any suggestions are welcomed! Thanks!