I cannot shuffle music on my liberary now I've updated to IOS 8.4

YYou have to go into an album, artist or playlist first and then can shuffle from there. Annoying if like me you sometimes like to shuffle your entire collection.

Shuffle 1: Select an Item

You won’t find the option to shuffle in any of these sections. But if you play an artist or song, the option to shuffle will be there. If you select an artist, you must have more than one song for the shuffle option to be shown.

Yes, I incorrectly said you could shuffle from selecting an artist, it's only there at the top of a playlist or album tracklist without playing first.