Why Does I Need To Sign In Every Time When I Go To learn.grasshopper.app

Help. Why Does I Need To Sign In To Grasshopper Every Time I Go To intro to interviewing Topic. Is This A Bug Or What. Help, Help!!!

Is this happening just on that one course, or on every course?

Every Course. And I Am Curious Why Would There Be about:blank in every page when i pressed ‘Sign Up With Google’ I Signed Up To All My Devices. But The Page about:blank disappears every 10 seconds.