Not able to find the maintenance in APM

Products

• DX SaaS

Issue/Introduction

We have been seeing our all the alerts are suppressed by <maintenance window name> maintenance in our production tenant. 

This maintenance in not available in maintenance window list still almost all of our alerts are impacted. 

We need urgent assistance in finding who created it and also what is the setting in this alert.

The other important question is why this maintenance is not visible to anyone and still working

Environment

DX O2 SaaS

Cause

Maintenance window was manually deleted by a user while maintenance window was in progress.

Resolution

Hotfix deployed in backend