Hapara have alerted us to an issue that's impacting teachers' access to student data in Teacher Dashboard.
The main impact is that we're currently unable to make changes to the configuration of Teacher Dashboard for your school, For example, we're unable to add new students, remove students, or fix student folders. This may also impact the use of Smart Copy/Share with some students.
Hapara are working with Google over the weekend to address these problems. I'll provide an update as further information comes to hand.
Thanks for your patience.