I have the downloaded the plugin from GitHub - playgameservices/play-games-plugin-for-unity: Google Play Games plugin for Unity for android. Added all the ID’s in the project after importing the plugin. Written the script to authenticate the player as well provided the buttons to login, check the leaderboard, submit the score and achievements. Also published the game in alpha testing mode in google play developer console with a google+ group as test users.
We install the game from the opt-in link provided. The player is not authenticated even after we receive the window to login and the window which asks for access to our profile details. The loading indicator disappears after sometime with failure callback. We checked with debug logs. The authentication fails. We cross-checked with ID’s and Bundle ID. They are all correct. We tried with every versions of plugins from github.com. Still it fails. Any idea?
You can download and view the sample project from this link:-