Still stuck here…
Do you need some other information?
I really don’t know what to do…
Maybe it has something to do with this:
I’ve also integrated firebase in my project, and firebase uses
<string name="google_app_id" translatable="false">1:795086958816:android:XXXXXXXXXXX</string>
So I had to change the google play games app id attribute name in
<string name="gpg_app_id">xxxxxxxxxxx</string>
Of course changed also in the AndroidManifest.
Is this attribute used somewhere else? (Maybe in the SDKBoxPlay sources)