Single Post Hero Template

I think this is a Blocks issue but forgive me if not.

I’m building a single post for the Studio-7 starter site using the single post page hero template in a block element. The issue I’m having is that background images show in the page editor but not in preview or on the live site. The gradient displays but not the image an svg (I’m trying to duplicate the effect on the homepage of the starter site). If I remove the gradient still no image.

I’ve tries different image formats, using advanced backgrounds and am not having issues with svg’s on the site.