I have the same stupid problem
I reinstall, deleted, install on 4 other devices, but this piece of **** connexion system not work.I'm french and i have a french IP, i think it only work on US IP ? It's very stupid ig is that :/. The game is great but i can't play w/ this **** connecting system. YOU SHOULD MAKE YOUR OWN ACCOUNT SYSTEM AND NOT ALWAYS USE THE GG PLAY ACCOUNT crap !
(Sorry, but i am very angry)