Hi @delx
Thanks for the clarification!
So your new post form, are you using acf_form()
for this or is it something you’ve put together yourself?
http://www.advancedcustomfields.com/resources/acf_form/
If it’s a custombuilt form maybe think about switching to acf_form() as you’d get all and any fields attached to the post type automatically and everything “just works” 🙂