Lesson plans not showing up

Hello! I am currently testing out the practicality of the Teacher role, and I ran into an issue that I cant seem to figure out. When I create a lesson plan it shows up in my planner but not on the home timetable. My initial thought was its because school is closed currently, but when I changed the current school year length and the term length it still doesn’t show up. If someone can explain how to get my lesson plan to show up on the home timetable, or what I’m doing wrong that would be very helpful!