Mind where you are
The blog list is what you see when you click on your main blog, NOT on a blog post. The blog list will show the Previous Lesson and Next Lesson navigation at the bottom, but it will NOT show the name of those lessons.
Even though my students should never be in the blog list I still set it to 1 Post per Page.
To see the Title of the Previous Lesson or Next Lesson in the pagination you need to be IN a blog post, not the blog list.
So you want to make sure that your students are always IN a blog post so that they can see the proper nagivation in the lesson footer.