My custom app to share content from Wordpress to our fan page makes posts only visible to admins, despite the fact they are listed as...

My custom app to share content from Wordpress to our fan page makes posts
only visible to admins, despite the fact they are listed as...

I've created a custom Facebook app to post custom Wordpress post types to
our Facebook fan page (sharing a link, featured image, description and URL
to the original post).
As a page administrator, I see this content appear on my Facebook fan page
perfectly, but if I am logged out of Facebook or another non-page admin
user visits the page, they see nothing.
The posts themselves all have the little "Public" globe icon next to them,
while all my other Page Settings seem to be correct and indicate
everything is as public as possible.
Any ideas?
Thanks,
Alex