Template Selector not working (produces blank page)

[BrianYee]

Hello,

I am creating a template which reports on elements withing a package chooses between two document templates based on element type. I generate documentation for a package by running it with the driver template which has contents like such:

>Package
>Element
{Template - Switch}
<Element
<Package

The Switch fragment is blank but in Custom Query under Template Selector I have this:

UseCase::UseCase_Frag
Activity::Activity_Diagram_Frag

UseCase_Frag and Activity_Diagram_Frag are fragments which have contents identical to templates which I have used in the past and produce the documentation I want, but right now running the driver template just gives blank documents.

All templates and fragments are in the same template group, and I am using Sparx Enterprise Architect 15.1
Could any of you help me with what I am doing wrong?