Why did I lose all my progress and my course revert back to a couple of months ago

Question

I sign in today to find that the course I have finished are now in progress and at a point that they are from done and the ones I started recently are no longer there. Question I have was there an issue where an old back up had to be used to fix an issue ?

Answer 1

Maybe course got updated or smth. Probably better ask [e-mail]