No display on Unity Remote Android phone

I downloaded the Unity Remote app for my Samsung Galaxy S3 and for a short while the phone displayed exactly what I saw in the Game view, but for some reason it stopped and now I can’t get the phone to show anything except the default Unity Remote icon/message.

I can still interact with the game using the phone, I just can’t see anything.

Does anyone know why I might have lost the display? I’ve tried starting up Unity Remote on the phone both before and after starting Unity, and it hasn’t mattered. Could there be a setting in Unity that I’ve forgotten?

I “sort of” solved my problem by uninstalling Unity Remote from my phone and re-downloading it.

It’s working for now - hopefully I won’t have to keep repeating the process.