I just noticed that for some reason, I am having problems changing chapters when playing the main workout (no premixes) with my firestick. I never had this problem before. For example, today I did Fitsplit Kickboxing, then wanted to go straight to the stretch without doing lower body but it would not let me. It kept taking me back to the first chapter in lower body. But if I pick the premix of just kickboxing, then I can go to the stretch. It also did this in ICE Icy Core 1. I've tested a couple other workouts and there is a problem with just the main workouts. The premixes do not seem to be affected. Any way to fix this?