Unable to read/write to Play Leaderboard

Is Logged In returns False, so I then use Show ExternalLogin UI which prompts correctly, and I then get the permissions screen -App would like to access…-, but after that I receive an On Failure response. I’m running the game from my device as well.

Are you using the full Android ID (10-13 digits and a mix of alphanumeric) or just the numbers (10-13 digits long usually)?