All Courses Page Template doesn't display properly

I'm unable to get the Courses page to use the Page Without Widgets template. I have tried creating a custom page using the [course_list] shortcode, but if I change the slug in the Coursepress setting pages it defaults back to using the template with the sidebar. Do I have to turn off Display Menu Items to make this work?

Also, the page display using just the [course_list] shortcode doesn't resemble the automatically generated page either - no featured image, no nice grey box.

Please help.