Custom Post Type Updating Issue

Hi there,
I have an issue when I try to edit Pods’ related form:

I use Gravity Forms to create new Custom Post Type (Pods) on my website. Once the post is created, if I edit it’s related entry from Gravity Forms backend area (Admin), the custom post type is updated fine, but if I use Sticky List plug-in from frontend, after I click on “Update” it creates 2 new Custom Posts Type (with 2 new permalinks) with the updated informations, instead of updating the current post.
Is it normal? Is there a way to simply update the current post instead of creating new?

Thanks!

The page I need help with: [log in to see the link]