# Braintrust: Major incident: Slow or failed data loading in US region

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2026-09-09 21:30 UTC · Detected: 2026-10-19 17:03 UTC
- [Source: https://status.braintrust.dev/incidents/01M2418VWM3N4EZ9A8XF2A8XN8](https://status.braintrust.dev/incidents/01M2418VWM3N4EZ9A8XF2A8XN8)
- [Company: Braintrust](https://rewindex.com/company/braintrust.md)
- Versions: before (none: first archived) → after incident\_version:672/01M2418VWM3N4EZ9A8XF2A8XN8@b31fa5a6c96a
- Change 1 of 1 for this incident

Incident page (full timeline): [Slow or failed data loading in US region](https://rewindex.com/company/braintrust/incidents/01M2418VWM3N4EZ9A8XF2A8XN8.md)
## What changed

**1. Added: Title**

```diff
+ Slow or failed data loading in US region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-09 21:30 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-09 22:10 UTC
```

**6. Added: Update** (investigating) · 2026-09-09 21:30 UTC

```diff
+ We're investigating slow or failed data loading affecting some customers on our US-hosted service. Affected pages may load slowly, hang, or show errors.
```

**7. Added: Update** (monitoring) · 2026-09-09 21:34 UTC

```diff
+ We've applied a mitigation for the data-loading issue affecting our US-hosted service and are monitoring performance. We'll share another update once we've confirmed stability.
```

**8. Added: Update** (resolved) · 2026-09-09 22:10 UTC

```diff
+ The issue causing slow or failed data loading in our US-hosted service has been resolved. We're sorry for the disruption.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-09 21:30 UTC | Major incident: Slow or failed data loading in US region (this change) | major |

All Braintrust changes: [timeline](https://rewindex.com/company/braintrust/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/iddcae80d5f6016 · Markdown: https://rewindex.com/change/iddcae80d5f6016.md · JSON: https://rewindex.com/api/v1/changes/iddcae80d5f6016 · Generated 2026-10-20T00:00:16.010Z