"Strengthen Skills" seems to be stuck on the same set of words/phrases
Does this seem to be happening for anyone else? Since the last app update, it seems like I am practicing the same few set of words and phrases no matter how well I do on it. I thought it was supposed to shuffle different words and phrases in with the next 'strengthen skills' exercise ... always used to. Now I'm in a rutt. How do I get out? Is this something the DuoLingo programmers know about?