I've always had my iphone plugged in in my car listening to spotify (as the foreground app) as I drive and the screen has always stayed awake...untill about a week ago.

Now, when my iphone is plugged in and playing spotify (as the foreground app) the screen turns off as per my usual 30 second sleep time. Google maps still seems to be able to keep my screen awake when it's being used and plugged in in my car, as usual, but Spotify has stopped working!

What has changed, was this part of Spotify update, was it always a bug for me, or is the new behaviour a bug?

I really want to keep my screen awake (when it's plugged in) and playing!