After updating to 4.6.0 the Android Auto display no longer changes album art when the track changes, after being plugged into the AA USB the Home Tab stops populating only showing the spinning loading signal on the phone and a “No Items” (or something like that) notice on the car display.
Others are seeing the album art change affect the phone Now Playing display tool. All are requiring a phone restart to fix.
After disconnecting from Android Auto the app is more or less completely broken. Home won’t load at all and nothing will play and you can’t change track. Only way to fix it is to Force Stop the app and reopen it.