I'm using Gravity Forms form to create both a WordPress post and a submission in Infusionsoft.
Using the Post Fields, I can get everything to work, EXCEPT the Post Image field. Regardless of whether this field is mapped to an Infusionsoft field or not, the following error displays:
"The form didn't create a contact because the Infusionsoft Gravity Forms Add-on plugin isn't properly configured. Check the configuration and try again."
If I use a normal upload file field in the GF form, everything works fine, but I can't take advantage of the WordPress image resizing and other benefits of the Featured Image or Post Image.
I don't see any PHP errors being generating, so I think it's some strange mapping that this plugin is trying to do for the Post Image field and is unable to complete. I would be happy to contribute to development to get this working.