On the Windows 10 Spotify app, the volume keeps lowering to a point where I can't hear it. I've tried every solution I've found including checking and unchecking the normalize volume button and changing the sound settings on my computer. Sometimes they'll work temperatily, but after an hour or so, the issue persists.
Same here but mine volume goes up. I think that there is something wrong with spotify connect, it normalizes audio settings between devices. In my case it sets Windows Spotify App Volume to match audio setting on my phone. It is really annoying and i hope that they will do something about it.