The Feedzy RSS Feeds Lite plugin works but the editor button and the shortcode creator don’t work with PageBuilder by SiteOrigin activated.  On toni-esl.com primarily.

The button hover is code and the pop-up window opens a copy of the same view/admin page I am working from with the coded layout of the buttons for upgrade, insert, and cancel.

I posted a thread on Feedzy support at WordPress.org.