Background Videos not updating through nav link

Hiya,

New to webflow, have used background videos for different pages on the site, they have been renamed in new classes. All is fine when navigating between pages in the editor, but if i click on a different page from the navigation menu the text is updating to the new pages content, but its keeping the background videos from the current page.

Anyone know what usually causes this?

It just seems to be holding the background videos but everything else is updating correctly