You want to pin me for not assuming the "on PC" bit that you didn't include in your response, but then go on to assume that I haven't even figured out how to update my phone in the last 12 months. Quite an interesting set of expectations!
For those referencing this thread to actually voice their concerns instead of antagonize other users, I'm on iOS 11.4 on an iPhone X.
Also likes to drain fast when casting to a Chromecast audio device even though it's not technically playing the music. As an aside, it'd be nice if you eventually fixed the Chromecast Audio groups issue. Another one that's been hanging around for quite a while now :)