Does it work if you retry about 6 times? I know it sounds silly but another user has reported a similar issue and I want to find a pattern in this issue.
Simular issue here. When I am logged in at Google by Chrome webbrowser and then start up Weekplan I can not log in by my google account. I have to log out from google, log in at Weekplan and then log in at Google again. Strange! Suspect problem identifying multiple google accounts?
Suspect problem identifying multiple google accounts?