100% of the videos that play on youtube start out with the first 15 secs of audio playing in 2 secs. Play back on youtube is perfect of Chromebook, windows 10, android and apple phone. This only happens on my roku ultra and the roku stick. I have already uninstalled and reinstalled the app on both devices and the problem still continues. The audio is very garbled and sped up but only on Roku devices not on anything else that I watch YouTube on.