I am not sure when this broke, but it is unfortunately definitely not working at the moment both within the Preview mode in EditorX and on a live site. (arnidoggears.com). The submission definitely happens because my automation behind the subscription checkbox works. However, the confirmation to the user indicating that the form was submitted on the website does not appear on it. I even modified it to appear for 8s and then “always” and it made no difference.
This is critical functionality for a friendly and smooth UX. Please fix it!