I just fixed a problem where CF7 was not showing a success message on submit. The messages were being sent but a 'spinning arrows' gif was showing forever.
Somehow Firebug showed an error in the Script (JS??) panel : Missing argument 2 for get_post_meta() on line 163 of cf7_autoresponder_addon.php
So i went in and changed
$form_meta_data = get_post_meta($form_id); //get the form meta-data so we can see if there is "mc-subscribe"
$form_meta_data = get_post_meta($form_id,true); //get the form meta-data so we can see if there is "mc-subscribe"
It works perfectly now but isn't this a bug? Have i upset anything in the script? It seems too obvious.