Bug on challenges ?

Question

Hello, as a beginner of Sololearn, I started challenging people with same or lower levels than me and I noticed that I often got questions I haven't studied yet on the app then I checked on people's profile and I saw they were most of the time not even where I am in the course. So I think there is a bug. (Let me know if I'm wrong) Bye

Answer 1

You need to complete the full course. else you may not understand some challenges. not a bug challenges are based on complete Sololearn course.
complete the course then do challenges you will be fine.

Answer 2

:) Challenges are not linked to your course progress. They are intended to be an addition to your learning experience after you have completed the course.

Answer 3

Then thanks for your answers.