You should replace the JetEngine Dynamic Field I added earlier with this new widget in the JetThemeBuilder “Single post” template — don’t keep both, or the content would render twice. After adding the code, go to the “Single post” template in Elementor, delete the Dynamic Field, search for “Post Content (the_content)”, drag it in below the title, and publish.

I’d strongly recommend putting this in a child theme’s functions.php (or a small custom plugin) rather than the parent Astra theme’s file — otherwise a theme update will wipe it out. I’ve written it defensively (it won’t fatal-error if Elementor is deactivated), but since editing functions.php can take a site down if something is off, please back up the file first and ideally test on staging.