The product photos are not showing up on the product pages, instead there is a stock place-holder image. When I preview the website on the editor, it appears as it should, with the individual product photos on the product pages. However, even after saving and publishing the changes (several times), it still doesn't show on the photos on the live site. I also can't find an option in the settings or style editor to allow me to turn off and on this feature. Please advise.