Empty/Blank LearnPress Courses Page

Hello:

We are testing this theme with a new installation of LearnPress on localhost. When we click on the Courses menu item, the Courses page only shows the Search box, but nothing else. If we switch the theme to Twenty Nineteen, the Courses page shows everything, including the courses.

So far, all the other pages are OK. Only the Courses page is having a problem.

Thanks.

-Eli