Hi Joseph,
From my test for form capture,
Submission is fully processed by form capture code,
there is no need to add action attribute for form tag, it's just a container for your input fields.
The only work we should focus is that giving all input filds with proper name attributes, and form capture script will detect information via them. (In my form, I gave their name with their match logical name in CRM)
Please try to remove:
1. action attribute which may be generated by Contact Form 7 for your form, only id and class attributes are enough.
2. any possible script on your page that may controls your form submission behavior.
3. any other plug-ins or extensions on the form page which may controls your form submission behavior.
Besides website-tracking code and form-capture code, name attribute of input tag is only required attribute on your form.(and all CSS styles for your elements)
Regards,
Clofly
