Thanks for posting the details. I was able to use your template files and create a new site design. When setting it up I choose the artists style menu and associated it with the top nav areas. I then associated the other regions with their similarly named area of the template.
In the end I created a site and the pages all include the menu without issue. On the content pages in split view I can see that the menu code has been added into the undeditable region of the template. I'm including a screen shot for reference.
Please post back and let me know if any steps are being performed differently for you when you get this result. What is the menu that you are selecting for the pages?