Anyone else getting these?
Yep, i've sometimes that problem too, and it's really annoying. It's often when you are at the end of your exercise, but there is no solution, you can't finish it because the challenge bar do not progress anymore, even if you answers are good (which can be difficult, because you can't also hear the sentences), so you have to redo it, from the beginning...
I have this glitch only since they changed the challenge bar's picture/animation, so i guess it comes from that.
Yes and on two strengthening exercises today. Though the problem has been on and off for about two weeks or more now. It's really beginning to get really frustrating as I don't think I have time to make up for the problem and reach my goal today. However since duolingo has helped me a lot I'm not ready to give up on in yet. However it's becoming harder to stay positive since I reported the problem at least twice now.