We are having the same issue. Our domain is cedarcatholic.org
I am also experiencing this issue. @billingschools.org (staff) @billingsstudents.org (students)
It Is Now Fixed
The login issues are now be fixed. We apologize for the inconvenience. If you are continuing to experience issues, please reply to this thread SketchUp for Schools Temporary Login Issues (FIX 28.04.2021)
Thank you for fixing our issue!