Featured Image Not Showing

Our company is trying to update specific project pages with a featured image. When I set the featured image on the dashboard editing page, it does not appear on the site’s page. Instead, it’s replaced by the image on the saved row that was created for that specific template. I attempted to delete the featured image on the saved row’s template, but to no avail. It’s also strange that some pages work with the selected image, but about 75% of them aren’t. Any suggestions on why each designated featured image for the specified page isn’t showing up? Any help would be great. And, as a note, I don’t know code and have tried the steps suggested by multiple forums, but nothing has worked.