This isn’t necessarily time sensitive, but I just wanted to mention that at the moment (BricksForge 2.2.7; Bricks Builder 1.10.3) when putting a nestable Pro Forms element inside of a Bricks Builder popup, the nestable Turnstile element will never render in the form on the front end if the popup is loaded via Ajax.
Turning off “Fetch content via AJAX” fixes the problem.