We just released an update to our Maker app that now embeds the “Login with Google” button within the app itself at the very top of the app. I just wrote a forum post with some screenshots that might be helpful - Update to Logging In with Maker App.
Your students should still be able to login with Google as before, but the button is just in a new place. Sorry for the momentary confusion!
Cheers,
Dan
CS Discoveries Curriculum Writer