I’ve turned the Running Text to ‘On’ and set the filter to random post. If you visit to one of your articles, you’ll see the Running text below the header. You can change the setting on “Curated > Content > Running Text”
If you want to display the Running Text on Home Page, please create new page, set the page template ‘Page Builder’, build the section you want with available settings. The Running Text will show there.
Hope this helps, let me know if it doesn’t.