When I open the App I get a pop-up that says "logged in", but I don't get a pop-up that says "signed in as <username>". At the top of the menu screen it shows my network is connected and it shows that I am "logged in to GooglePlayGames". However, when I go to Settings my PFID is displayed as "User not logged in yet". I suspect that I am missing content as a result (I have posted separate threads/replies regarding missing Treasure).
Any ideas as to how to get signed in properly (the correct user is logged in to Google Play outside PACG