Spotify version 8.6.20 totally breaks the iOS SDK.
Via iOS SDK, our App asks Spotify if Spotify is active, Spotify returns that is not active (but it is active). Spotify also returns a token that is no longer active. Therefore, every request from our app using Spotify iOS SDK doesn't work if user has new Spotify version 8.6.20. Everything still works properly if user has previous Spotify versions earlier than 8.6.20.
Please Spotify fix this and post about it quickly.