title: Why does the Google Play Games login fail in the unpublished version of my game?
body: <p>I have working Google Play Game leaderboards and achievements in my game. They work perfectly fine when the game is installed from the play store, but when I install the apk on my phone to test(from the computer), Google Play Games fails to login my account, and of course, the leaderboards and achievements don't load. How can I fix this? </p>