I've just recently started experiencing something similar with the wrong song/artist in the center cockpit panel display, but it is not related to CarPlay. When listening to Alexa music (not in CarPlay), it starts off working fine, but randomly after a period of time the song/artist in the center cockpit panel display stops reflecting the current song. The display is still there but it shows a previous song, and it no longer changes when the song changes. If I change the right cockpit panel display to show music, and then switch back to navigation, the center cockpit panel display starts showing the correct song again. This center panel freeze-up will randomly occur again after a few songs are played.