# Lightstep (ServiceNow Cloud Observability): Critical incident: Not evaluating unified alerts

**Summary:** _summary pending_
- Kind: Major incident · Label: critical (vendor)
- Changed: 2023-02-23 20:05 UTC · Detected: 2026-10-19 18:33 UTC
- [Source: https://stspg.io/y29c4tkggqjj](https://stspg.io/y29c4tkggqjj)
- [Company: Lightstep (ServiceNow Cloud Observability)](https://rewindex.com/company/lightstep.md)
- Versions: before (none: first archived) → after incident\_version:742/y9yhb6tkfj22@1c84bcb5fda6
- Change 1 of 1 for this incident

Incident page (full timeline): [Not evaluating unified alerts](https://rewindex.com/company/lightstep/incidents/y9yhb6tkfj22.md)
## What changed

**1. Added: Title**

```diff
+ Not evaluating unified alerts
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2023-02-23 20:05 UTC
```

**5. Added: Resolved time**

```diff
+ 2023-02-23 21:47 UTC
```

**6. Added: Affected components**

```diff
+ Observability - Alerting - Metric alerting, Observability - Alerting - Trace alerting, US - Streams Alerting, US - Unified Alerting
```

**7. Added: Update** (investigating) · 2023-02-23 20:05 UTC

```diff
+ We are currently investigating this issue.
```

**8. Added: Update** (investigating) · 2023-02-23 20:46 UTC

```diff
+ We are continuing to investigate this issue.
```

**9. Added: Update** (monitoring) · 2023-02-23 21:05 UTC

```diff
+ A mitigation is in place. Continuing to monitor.
```

**10. Added: Update** (resolved) · 2023-02-23 21:47 UTC

```diff
+ This incident has been resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2023-02-23 20:05 UTC | Critical incident: Not evaluating unified alerts (this change) | critical |

All Lightstep (ServiceNow Cloud Observability) changes: [timeline](https://rewindex.com/company/lightstep/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i9f014873ee945e · Markdown: https://rewindex.com/change/i9f014873ee945e.md · JSON: https://rewindex.com/api/v1/changes/i9f014873ee945e · Generated 2026-10-20T00:48:47.279Z