# Statsig: Major incident: Success Rate drop for US East Region

**Summary:** Statsig reported a major outage affecting Config Delivery API - US East 1 and Log Event API, US East 1, with elevated errors for initialize and event logging traffic. It started at 2026-01-12 20:30 UTC and was resolved at 2026-01-12 22:24 UTC, lasting 1 h 54 min; no cause or fix was stated. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-01-12 20:30 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/gv79gs5s3mr5](https://stspg.io/gv79gs5s3mr5)
- [Company: Statsig](https://rewindex.com/company/statsig.md)
- Versions: before (none: first archived) → after incident\_version:208/7004fhqct6m3@3fac4d2b9984
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Success Rate drop for US East Region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-01-12 20:30 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-01-12 22:24 UTC
```

**6. Added: Affected components**

```diff
+ Config Delivery API - US East 1, Log Event API, US East 1
```

**7. Added: Update** (investigating) · 2026-01-12 20:30 UTC

```diff
+ At 12:30 PM PST we saw elevated error rates for both initialize and event logging traffic. We are investigating the issue. Mitigated: 01/12/2026 14:24:00 GMT-0800 (Pacific Standard Time)
```

**8. Added: Update** (resolved) · 2026-01-12 22:24 UTC

```diff
+ Resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-01-12 20:30 UTC | Major incident: Success Rate drop for US East Region (this change) | outage |

All Statsig changes: [timeline](https://rewindex.com/company/statsig/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._


---
Canonical: https://rewindex.com/change/i71ec231088c862 · Markdown: https://rewindex.com/change/i71ec231088c862.md · JSON: https://rewindex.com/api/v1/changes/i71ec231088c862 · Generated 2026-10-18T02:29:29.156Z