This is NOT a bug but a wrong configuration your environment.
We are not responsible for the adminsitration and configuration of your server.
It seems that you have not understood the concept.
I suggest that you review the tutorials.
If you want that we setup, configuration, ... your environment, this is possible with our billable support that you can order at
www.jms2win.com/download?page=shop.produ...35&category_id=1

Review the setup of your hosting provider.
It seems that you have provided the master root directory and not the deployed folder directory to have your HTTP Server be setup to have specific images "root" folder.

As you call a slave site "master", this may create confusion in your mind.
Start to follow the tutorial step by step to clearly understand the concept.