Plan: Premium

Country: USA

Device

iPhone 5C

MacBook

Spotify Web 

I have nice speakers wired into my kitchen from a nice amplifier/stereo in another room and all  I want to do is remote control an old iOS device plugged into that stereo so I can play Spotify in my kitchen.  I'll spare you the struggles (very frustrating), but a couple of months ago Spotify got everything right - I could reliably control the music and the volume of the old iPhone from my MacBook or another iPhone or play.spotify.com or a Windows computer or WHATEVER.  My wife and I disagree on volume pretty frequently and this brought harmony and happiness and good music to cook with.  Recently, Spotify seems to have broken the volume control for Spotify Remote - I can't control any device's volume control from anywhere.  I've tried every combination (iOS to iOS, web to iOS, web to PC, etc.) restarted, rebooted and even **bleep** reinstalled - it's JUST BROKEN EVERYWHERE IN SPOTIFY.  Am I alone in this problem?  Does anyone else rely on this feature?  My marriage is at stake...