The button would have to get feedback from Soundcloud website - definitely not an easy fix, but possibly tying in with the topic I recommended to Watch in my previous post (just realised it's been a long "couple of weeks" woops..)
I presume you're not able to see the Like heart on the website while you're using the remote?
I'll definitely have a tinker in the next few days..
Just following up the same problem, VLC basic volume control used to work, now it has stopped suddenly, mute still works with my setup with latest unified server and controller on android.
Does anybody know if in paid version volume control works ?
Or any suggestions to try on basic control ? it says though on basic you can control volume up/down..