Driving home today and listening to music on the USB stick showing the music on the display. All of a sudden I heard a direction from the navigation and the screen went blank (blue) and the music kept playing. I wasn’t even using the navigation. The controls on the left handle bar would not work such as the home button etc. When I turned the bike off and then back on again everything went back to normal. My question is has this happened to anyone else and it it normal.