Using ConfigBuilder.RequestServerAuthCode(false) causes issues

[benjaben]

PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder()
                // requests a server auth code be generated so it can be passed to an
                .Build();

            PlayGamesPlatform.InitializeInstance(config);
            // recommended for debugging:
            PlayGamesPlatform.DebugLogEnabled = true;

            // Activate the Google Play Games platform
            PlayGamesPlatform.Activate();

This works and gets me through logging in.

PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder()
                // requests a server auth code be generated so it can be passed to an
                //  associated back end server application and exchanged for an OAuth token.
                .RequestServerAuthCode(false)
                .Build();

            PlayGamesPlatform.InitializeInstance(config);
            // recommended for debugging:
            PlayGamesPlatform.DebugLogEnabled = true;

            // Activate the Google Play Games platform
            PlayGamesPlatform.Activate();`

This breaks and throws a canceled status.

• I'm doing a build & run through USB and the SHA on Cloud Platform Console and Google Play Console matches my local keystore
• The user is on every tester list
• The Cloud Platform Console is set to external
• The GPS is published
• The ClientID in the Unity Android Setup matches the Cloud Platform Console Client ID

Those are the main issues I saw that other people had, but I've got them all covered.

[pbelluzzo]

I had the same problem, succeded logging in without .RequestServerAuthCode(false), but now i have problems. With .RequestServerAuthCode(false), i have the same problem, if i set it to true, the oauth consent screen appears, give me a security warning ( sill in internal test), and ask for permissions. After allowing, the consent screen reloads, shows the warning and ask for permissions. And the loop goes on, never succeding or failing....