Unable to override blog tempate via Global Options

Hi

I am trying to use a custom blog template that I created for my website using Elementor Pro.

I followed this tutorial to create the custom blog template but the changes are just not showing.

Tutorial: https://futuriowp.com/docs/futurio/drag-drop-page-builders/elementor-blog-builder/

Can you please advise me on how I can get the blog template I created to show?

Thanks!