Sorry if this is duplicated but google hasn't been much help. I've just got the iPhone 6s on iOS 10 and if I delete a playlist on my phone it deletes it on my comp. Or my main annoyance is I've a got a playlist that I'm building up and when I update the phone with it again it wipes out the playlist on the comp and just reverts to the older version on the iPhone. Any idea's? or is this is a know bug? Only way to get round it is to wipe all music everytime and then start again which is very time consuming.