Live TV won’t airplay

Thanks for the inputs. I’ve refined the problem best I can as follows:
Airplay works fine streaming from Youtube and other similar streaming devices. To me this means the interface between the ios device and Roku is functioning. It means the in-house network is fine. It means interface with the internet is fine.
However when I attempt to have the Tablo app running and activate Airplay it says “This video is playing in Airplay” and all I get is the spinning “Walmart daisy”.