Anyone else with the Nougat update having issues with Amazon Prime on the Shield TV with a Logitech Harmony remote? Once in the app I'm not able to select titles using my Harmony remote. I can exit the app by pressing the Home button. But the OK button doesn't seem to supported in that App.
Note I have the Logitech remote connecting to the Shield TV via bluetooth.
Which Shield TV?
If it's Gen 1, look at onesane thread at: Link For Gen 2 I am not sure it would work if it doesn't have an IR receiver.
Maybe you can try with the Nexus Player profile if the Shield TV one doesn't work, but keep your Bluetooth profile.