Spotify starts playing in the background when connected to Bluetooth headphones or car BT system. But the Spotify app does not show that the song is being played. I need to push the "start/play" button and then "pause" in order to pause the song that was initially played.
at the same moment car BT audio system displays wrong name of the song: it displays the same name that is seen in the app. But in fact, it is a different song that is being played.
then if you push "play">pause>play: again, the same issue - one song is being broadcasted, but the other is on a display.
So it looks like that there are two Spotify app instances running at the same time: the one that is currently broadcasting a song through BT, and the other instance that is running on the phone but is at the "pause" stage but broadcasting the name of the "paused" song.