Thank you for the excellent help, Peter!
I gave that a try and now the output is just blank.
Setting in Code element: https://share.getcloudapp.com/xQuOZ0Bz
<?php echo rwmb_meta('embed_code','','{post_id}'); ?>
The original shortcode is directly from Bricks Builder reading that field. https://share.getcloudapp.com/X6u5BzxA
Thank you for being so supportive.
