Roon won't play using iPad remote

That’s it really. It plays fine controlled by the computer nothing when using iPad app. It sees my library and says its playing albums but no sound

On the iPad can you check the desired zone is selected.

Yeah I only have one zone. I think Roon isn’t happy trying to play while my library is still integrating. I can play Tidal through Roon but get silence when trying to play my own music.