Custom Shortcode List is Missing from Modal Window

Hi everyone,
I’m hoping that someone in our group will be able to offer some assistance.
I purchased Shortcodes Ultimate for WordPress and also Shortcodes Ultimate: Maker Add-on.
Installation went smooth.
The problem that I’m having is when I select the “Insert Shortcode” button (located on top of the editor), the modal window does not list my custom made codes.

If on the other hand I select Custom Codes directly from the admin menu (left side) I see the listing with my custom codes plus when I click on View Shortcode the second modal window that opens up I can see all the available shortcodes including the custom ones.

[IMG]http://i65.tinypic.com/10fcihj.jpg[/IMG]

[IMG]http://i68.tinypic.com/5l29es.jpg[/IMG]

[IMG]http://i65.tinypic.com/2qv9zx4.jpg[/IMG]

[IMG]http://i67.tinypic.com/29p7os1.jpg[/IMG]

My system’s information is:
I’m using Chrome Version 57.0.2987.133
WordPress 4.7.3 running Davinci theme.
PHP Version 5.6.30-0+deb8u1
Zend Guard Loader v3.3
Zend Engine v2.6.0
php-fpm PHP Version 5.6.30-0+deb8u1
MySQL Support Client API version 5.5.54

Any assistance on why this is not working properly would be appreciated.
Oh and by the way, yes I have sent email to the developer but never got an answer.

Regards
Tom