Facebook Graph API - Page - Scheduled posts not co

Question

I'm trying to list all future scheduled posts for a business page but when I request promotable posts as per the documentation graph.facebook.com//promotable_posts its not pulling back unscheduled posts with one exception - directly after I initially create a new scheduled post.

I can't figure out why but this is the only time it will pull back the list and it will only do it for the first request after a new post not subsequent.

Any ideas ?