Please Amazon music developers, there's an issue where going away from the app while no music is playing and going back the app loads blank and will not show the last played song. I have to hit back several times or force quit the app to have the user interface reload. Basically, it is as if the app can't be suspended in the background or gets stuck while suspended and the end result is a blank user interface and you have to reload the app and effectively can never pickup where you left off.