Forte Home Page Slide Show

Site URL: https://www.paulholland.co.uk

Hi, I'm using the Forte template... In the past when I have changed the order and therefore the first image on a Page this has  automatically updated and appeared as the page's lead image on the Home Page within a slideshow. Recently when making this change the image which appears first on a particular page no longer appears on the Home Page. How can this be rectified? Is this a problem with the Page or Image itself? Currently certain first images update and others do not when viewing from Home?

Thanks