BB child theme - page width stuck on boxed

I have set up two subdomains, both with BB theme and child theme. I’ve got the BB pro plugin on both, and have set up the front page of both to be almost the same. One is a podcast site, the other is a blog site.

Weird thing is I want them both to be full width. The podcast page is displaying perfectly. But the blog page, which has all the same customizer layout settings and the row settings set to full width, is boxed.

I’ve tried all I can think of, and have looked for CSS that might fix it too but haven’t been able to identify the correct body tag yet. But I shouldn’t have to use CSS anyway, since as far as I can tell it’s the exact same as the podcast site. However, I’m happy to use CSS if someone can pinpoint it.

Any suggestions welcome, with thanks in advance.