iframe disappearing in Custom Post Type Archive

I am using custom post types and on the created archive page, I want to embed a video. Strange this is that when I embed any code, it disappears upon saving. I’ve tried it in html, text, and with code tags. When I click ‘save’ it instantly disappears. Anyone know what I can do to stop this? Or know why this odd behavior is happening?

https://www.ads-software.com/plugins/genesis-custom-post-types-archives/