I wrote a game in LibGDX, and implemented AdMob (without problems) and tried to implement also Google Play Games. Unfortunatelly, game behaves now very strange. It works perfectly on signed debug APK, but magic happens on signed release APK. Most of the time it works perfectly fine, but sometimes logging into account throws empty error and when I try to give myself test achievement, it crashes becouse of empty variable. Even funnier stuff happens when I try to publish it on Play Store, then it stops working completely!
I've tried many things: adding silent login, trying on different accounts, different devices, added FireBase, publishing app both on Beta and Official Google Play channel.
The worst thing is it gives completely no error message in logcat.
I've used
implementation 'com.google.android.gms:play-services-ads:15.0.0'
implementation 'com.google.android.gms:play-services-auth:15.0.0'
implementation "com.google.android.gms:play-services-games:15.0.0"
implementation 'com.google.firebase:firebase-core:15.0.0'
on android project.
How can I fix such behaviour?
Problem seems to be solved, I've added second app to the game service, but this time linking it with actual Google Play item instead of lone package name.