Yesterday I updated my iPhone 7 to iOS13.1 and now my 2015 Audi A3 mmi is not able to control the apple music. The screen appears as normal and I can see all of the playlists. The bump forward/reverse on the volume knob doesn't do anything and the dial to choose songs will move and highlight a song but it won't select the music. I have tried a hard restart on both the Audi system and my iPhone. The toggle features work on the radio and the CD player. I think it's an apple issue. Any ideas would be appreciated.