Copilot - Your education account is not yet supported

University sysadmin here. 

An increasing number of users with A5 licenses (Copilot Chat) are receiving the following error when trying to access https://copilot.microsoft.com/

"Continue as a guest or sign in with a personal account instead. Your education account <email address> is not yet supported."

Is not impacting all users and seems to be transient. Cornell is also reporting the issue: https://itservicealerts.hosting.cornell.edu/view/7585

Workaround: User can sign in to Microsoft Teams and access the Copilot app without issue.

-Matt