User Profile

Hello guys I am currently working on an iOS App that lets you Listen to Music and I am using the MPMusicPlayerController for playback!When setting up the Music Player I also set the shuffleMode but sometimes setting it fails:[SDKPlayback] Failed validators: {( setShuffleMode )}Now I would not really have a problem with the failure since I can try it again later tough a big problem is that when this error occurs the whole App freezes.Since I can/ should call functions of the MPMusicPlayerController only on the Main Thread I don't know how to prevent this from happening.Is there some check I can make before trying to set ShuffleMode or any other ways you can think of, preventing the App from Freezing?Thanks a lot for your help