Create Meeting with Template Id

I am using the Zoom API to create a meeting - this is all working as expected! I am including a template id but this does not have any effect.
I know the templates exist.
I know I am passing the correct template id as I pulled these from the Zoom API.
However when I look at the Registrtion link I do not see the banner or logo set in the Template Branding.

No Error is issued it is just that the branding is not being applied.

Which App Type (OAuth / Chatbot / JWT / Webhook)?

Which Endpoint/s?
I am using the end point /users/{userId}/meetings and POSTING to this.

Am I doing something wrong or is there an alternative way to set the branding via the API?

Hi @mark.a.strange,

Thanks for reaching out about this—I can see you’ve since been in touch with us at our Developer Support alias, and a member of our team will reply back to you directly there shortly.