I am new to wordpress and am using the Picolight theme to build a website. I would like a different header image on each page, but for some reason I can't get the featured image function to work for me. All the images I’m trying to use work as headers; I’ve tested them by setting them each as the main header. All the images also work on all pages when I specify that a random selection be made. It looks like I should be able to specify which image I’d like to use for each specific page; a thumbnail of the image I select shows up on my dashboard Edit Page after I set the featured image just like it’s supposed to. But for some reason none of the images appear on the site and only the main image is repeated across each page. I’ve tried turning off all plugins but that hasn't made a difference. I haven’t been able to find any solutions on other posts, so any suggestions on what to try next would be much appreciated.