I'm signed in, because there is also leaderboard+achievements and they work just fine. Here's my setup:
- I have filled in "Android application license key" in the plugin properties in C2.
- The game is published in Alpha version in the Google app store.
- Created Google Group and shared opt-in link with my tester account (diffrent from my dev acc)
- Installed the game from the store and signed in with my test acc.
I've tried so far:
- Create another test account.
- Install it on another device.
- Clean cached data from the Google Store app and restart the device.
- Reset the device to factory setting and make clean install.
The error is still there, I'm desperate. Can someone help me?