For featured course you should go to wp-admin section and in this Find LMS
In LMS Setting click on all courses section.
If you should checked the courses in All courses section then it will become Featured course like that :http://prntscr.com/p0ko6o
I didn't change a single line of code but all the course section should be visible in the app:http://somup.com/cqQn1vewap
In the course category page the ordering of all the pages will be same so that's why they didn't decide which will show or which will not.
That's why we will ordering the category pages.
You have to go to the wp-admin=>LMS=>Course category
http://prntscr.com/p2i68b after that click on edit to set the ordering http://prntscr.com/p2i7ft Then set the display order http://prntscr.com/p2i7qc Of all the category.