Apple IOS update 8.4 question
I don't know how you used to shuffle your music before, but apparently there is a way to restore the 'shuffle all songs' functionality present on earlier versions, if that is what you mean:

http://ios.wonderhowto.com/how-to/shuffle-all-songs-apples-new-music-app-ios-8-4-0162796/

(EDIT: The two methods in that page are:


While a song is playing, use Siri and say "shuffle songs".
Create a 'smart playlist' containing all your stuff, because you can still shuffle within a playlist.


)