I just had a site developed for me. I had the developer put in stock images as mine weren't ready. This is my first time using Elementor. I hit Edit Page, hit the tab to edit, went to Style, deleted stock image, added mine from the Media Library, hit Update. When I hit Preview, the new image is there. When I look at the page on a different device, it shows the old image. After a while, the old image shows back up in the editor. I'm about ready to pill my hair out! Attaches is screenshots of what Elementor and the page shows.