I just changed my phone and noticed the app I was using as a remote for Android TV doesn't exist anymore. It's been replaced by the Google TV app which includes a floating remote when a TV is detected. There is a setting to enable it. The problem: the floating remote just doesn't show up. Am I missing something? I tested a couple of random Android TV remote apps from the Play Store and they all detect my Android TV immediately (it's a Sony X850E if that matters), why am I having issues with the "official" app only?

EDIT: solved by completing updates on my Android TV