I'm trying to figure out why these images are broken in these quiz questions when they were working and now they aren't..not sure why.. but it seems like the same questions are working in another course - not sure if they are the same or what. Anyways, I see a little "restore" icon by some of the questions and the text are links. See attached image. What does this mean? When I click on restore it will bring me to a blank page, then I go back and refresh and the restore icon gets replaces b the normal one.