I posted this under German from English, but am copying it here. I have students working on Basics 1 in German, and when they complete lesson 5 successfully, it goes Gold, then resets to blue, and throws them back into lesson 4 or 5. No matter how many times they do the lesson, this recurs. I have even done the lesson again for them, losing no hearts, and it still happens. So basically, they cannot learn anymore than basics 1.