Setting PresentingViewController helped me to resolve the issue.
SignIn.SharedInstance.PresentingViewController = this;
Have found such fix here:https://github.com/googlesamples/google-signin-unity/issues/169#issuecomment-791305225
Setting PresentingViewController helped me to resolve the issue.
SignIn.SharedInstance.PresentingViewController = this;
Have found such fix here:https://github.com/googlesamples/google-signin-unity/issues/169#issuecomment-791305225