Well, needless to say, I’m using CF7. There where some issues where $debug[‘mode’] == ‘debug’ on line 555 of file forms-3rdpart-integration.php was throwing an error. Mostly because $debug[‘mode’] didn’t exists (once we go to production). This error caused CF7 not to received a ‘Success’ on return and thus failing to ‘redirect’ to my thank you page. I wrapped this piece of code with an array_key_exists (yeah… I know, noobie)… but that seemed to have worked just fine.