"Finished" phase 1, but lesson 6 (slow flight and flaps) crashes FS2020. I looked at the Navigraph Academy forum and noticed others having the same issue.
This problem prevents you from taking the phase 1 final exam. You can still move on to the phase 2 lessons and briefings.
Lesson videos and briefing are fine, but there is no audio when flying the lesson to pass or fail the mission. For being a free product, I think it is worthwhile and informative either for beginners or more experienced simmers.