I removed my gmail acc, signed in again. was ok.
this needs attention. Im having the exact problem:
Firstly, when i try to connect to my village, the googleplay connect button doesnt work. It only works if you hit it multiple times in quick succession. When you succeed, you can choose your google-account you want to use. After you chose it, it connects but disconnects a moment later.
I have tried 3 totally different devices(also systems where ive played on before)
I uninstalled on all of them multiple times but it didnt fix it.
im quite sure its a coc bug, because google play connect works on other games just fine.
I have the same problem, since saturday. I tried all and I still can't load my account.