# Temporal Cloud: Major incident: Customers in us-east-2 may experience some visibility related errors

**Summary:** Temporal Cloud reported a major incident causing visibility query errors for namespaces in us-east-2, starting 2026-07-15 16:55 UTC and resolving 2026-07-15 21:15 UTC (4 h 19 min). Temporal scaled up service for mitigation and advised MRN-enabled customers to fail over to passive regions. All namespaces failed over by Temporal were failed back before resolution. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-07-15 16:55 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/b09nh73kxwgn](https://stspg.io/b09nh73kxwgn)
- [Company: Temporal Cloud](https://rewindex.com/company/temporal-cloud.md)
- Versions: before (none: first archived) → after incident\_version:211/dpytf2mjd69z@06db78af4f77
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Customers in us-east-2 may experience some visibility related errors
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-15 16:55 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-15 21:15 UTC
```

**6. Added: Affected components**

```diff
+ Amazon Web Services (AWS) - us-east-2, us-east-2
```

**7. Added: Update** (investigating) · 2026-07-15 16:55 UTC

```diff
+ Customers with namespaces in us-east-2 may experience errors with visibility queries. We are currently investigating.
```

**8. Added: Update** (identified) · 2026-07-15 17:52 UTC

```diff
+ We are working on a fix, if your namespace are MRN enabled please fail over to your passive regions for faster recovery.
```

**9. Added: Update** (identified) · 2026-07-15 18:33 UTC

```diff
+ All MRN-enabled namespaces have been failed over as of 17:53 UTC. Mitigation continues to progress.
```

**10. Added: Update** (identified) · 2026-07-15 19:12 UTC

```diff
+ Mitigation is still in progress. We are scaling up service to help with mitigation efforts.
```

**11. Added: Update** (monitoring) · 2026-07-15 19:58 UTC

```diff
+ Mitigation is in effect, we are seeing some recovery. Please submit a support ticket if you are seeing service degradation.
```

**12. Added: Update** (monitoring) · 2026-07-15 20:29 UTC

```diff
+ We are seeing full recovery on our end, we are continuing to monitor.
```

**13. Added: Update** (resolved) · 2026-07-15 21:15 UTC

```diff
+ All MRN-enabled namespaces failed over by Temporal have been failed back. This incident has been fully mitigated and is now resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-15 16:55 UTC | Major incident: Customers in us-east-2 may experience some visibility related errors (this change) | outage |

All Temporal Cloud changes: [timeline](https://rewindex.com/company/temporal-cloud/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/iade6de09a80ce2 · Markdown: https://rewindex.com/change/iade6de09a80ce2.md · JSON: https://rewindex.com/api/v1/changes/iade6de09a80ce2 · Generated 2026-10-18T00:37:42.831Z