Two key alerts went to unknown status

Products

• CA Application Performance Management (APM / Wily / Introscope)

Issue/Introduction

 Two key alerts went to unknown status. They are still in unknown status. Due to this, a major alert was missed. The same metric grouping works fine in DX Dashboard

Environment

SAAS

Cause

Regression error.

Resolution

A long regex of over 10K was involved. The regex had a second capturing group that was the culprit. 

The troublesome second group: 

Agents\|(S(NNNNN)|Example)\|.*Infrastructure\|Agent:ConnectionStatus

This was breaking the Alert which always had an invalid status and was grayed out. 

This was changed to 

Agents\|(SNNNNN|Example)\|.*Infrastructure\|Agent:ConnectionStatus

A 2023.9.1 Code was implemented and resolved the issue.