google play services not signing after game is publish on google store

Right so i have created and tested my app many many times with this plugin (GitHub - playgameservices/play-games-plugin-for-unity: Google Play Games plugin for Unity) implemented and Everything works incredibly. However when i publish my app through the google play store, the game says, failed to sign in. My guess is it might be something on the developers console that im missing or something i left out or didnt do cuz the game is working fine with the google services when i build it straight to my phone. so i am wondering if anyone else has experience this. any help appreciated

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