Issue Reported: 13/07/2021 20:03:00 PM
Microsoft Reference : EX268922
Issue Status: RESTORED
Issue Description: Admins are seeing a blank pane when opening email previews from the Email entity page within Microsoft 365 Defender.
Scope of impact: All admins trying to access email previews within the Microsoft 365 Defender portal are impacted.
Final Update – 19/07/2021 01:50:00 PM: Microsoft validated their fix, began the deployment, and confirmed that this fix has been applied to most of the affected customers.