Android app bundle kills Google play games services

I just finished my game and implemented google play games services and everything works well as an apk file . But if I want to export it as an Android app bundle file, the file size is a lot smaller (got from 38mb to 16mb), but the Google play games services does not work anymore . Any ideas for what could causes the problem?

But the game is already downloadable from the google play store. It would be awesome to get feedback for it as well.
It is about localising sounds just by listening over stereos headphones and centering them in the middle by tapping on the left or right half of the screen.

https://play.google.com/store/apps/details?id=com.OSOGame.SebastianJunghans

I had same issue, just fixed it: Social.localUser.Authenticate Crash (logs) · Issue #2634 · playgameservices/play-games-plugin-for-unity · GitHub

I do not understand the instructions :(.

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I just have these settings available.

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Download and install the last version of GPG

I already have the latest version installed. But anyway I redownloaded and reimported the plug-in but nothing has changed in the resolver settings.

What the unity version do you use? You need to update the resolver. Click Assets-> Play Serv.R-> Version handler-> Update

It said directly update completed.

Is use unity 2018.4.3f1 personal