Jetpack Connects For Admins But Not Authors

*******************
Environment
*******************
WordPress 4.6.1
Jetpack 4.4.1
Host: WPEngine
SSL: Yes
Cloudflare: Enabled, but at Cloudflare. No Cloudflare plugins are installed on the site.

*******************
ISSUE
*******************
We continue to have an issue where admins can connect their wordpress.com accounts to Jetpack (to access Sharing, Publicize, and Stats), but Authors cannot to JetPack at all. Any attempt at an Author connection hangs at some point in the process.

This problem has been with us for the better part of the last 6 months.

We’ve tried the Jetpack beta plugin and no fix in there seems to work. We’ve also gone through the known issues list and made sure we have no known conflicting plugins and our SSL is configured properly. We do have a small bit of custom code which should enable Authors to access Publicize (see below), but it follows the Jetpack API/codex.

We recently upgraded the entire site to the latest and greatest in the hopes that would resolve the issue, but it did not.

The following video walks you through the exact issue, as it occurs. It also goes into further detail with our attempted fix.

http://www.screencast.com/t/ynXYmBEad

Thanks,

Doug

PS: Advanced Debug Information sent in JP Support Ticket.

*******************
Custom Code
*******************
/**
* Modifies JetPack Publcize Module to required capability for custom user role
* @return [type] [description]
*/
function pf_publicize_capability() {
return ‘edit_posts’;
}
add_filter( ‘jetpack_publicize_capability’, ‘pf_publicize_capability’ );