Report package PPTX Style Master how does it work?

Summary

When loading a simple PPTX style master, it adds placeholder text boxes everywhere!

Content

Hi all

Just trying to trial building report packages from our recently built application. I'm working with Powerpoint.

In looking at Oracle documentation, the slide master is meant to store all slide layouts, header/footers, page numbers, colours and so on. When using our company one, it only seems to acknowledge the first slide layout, and not completely.  

So to keep it simple,  I have loaded in a single slide style sample to be my slide master. All this slide master has is a page number, a background colour and an image. I've deleted all "Enter your heading here" type text boxes.