We have rolled back the changes and will set up a new maintenance schedule later to deploy the update.
We are investigating the Frankfurt report farm issue that has occurred during the maintenance. We will update as soon as we resolve or find out anything further.
On Friday, November 10th, from 1300 to 1400 CDT (2000 to 2100 CET), the Cloud Operations team will be applying updates to the EU - Portfolios/EA Frankfurt AWS Datacenter Power BI Report Server farm. During this time all reporting will be unavailable for customers v15+. No action is needed after this update.
If you do experience any issues with existing Power BI content please submit a case via https://support.planview.com.