# Statsig: Major incident: Client SDK Initialization SR Dip in EU-West

**Summary:** Statsig reported a major incident involving elevated 5xx errors during client SDK initialization in EU-West, affecting Config Delivery API - Europe West 1. It started at 2025-07-04 19:25 UTC and was mitigated and resolved at 2025-07-04 19:28 UTC, lasting 3 min. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-07-04 19:25 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/yrkg8srwlh9b](https://stspg.io/yrkg8srwlh9b)
- [Company: Statsig](https://rewindex.com/company/statsig.md)
- Versions: before (none: first archived) → after incident\_version:208/zrp2nlr2rqvp@d381018a3e26
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Client SDK Initialization SR Dip in EU-West
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-07-04 19:25 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-07-04 19:28 UTC
```

**6. Added: Affected components**

```diff
+ Config Delivery API - Europe West 1, Europe West 1
```

**7. Added: Update** (investigating) · 2025-07-04 19:25 UTC

```diff
+ **07/04/2025 12:28 PDT Mitigated**: We have mitigated the elevated 5xx error rates for client SDK initialization in the EU-West region. **07/04/2025 12:25 PDT Investigating**: Started observing elevated 5xx error rates for client SDK initialization in the EU-West region.
```

**8. Added: Update** (resolved) · 2025-07-04 19:28 UTC

```diff
+ Resolved.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-07-04 19:25 UTC | Major incident: Client SDK Initialization SR Dip in EU-West (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._


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Canonical: https://rewindex.com/change/if23f5c6d348dd3 · Markdown: https://rewindex.com/change/if23f5c6d348dd3.md · JSON: https://rewindex.com/api/v1/changes/if23f5c6d348dd3 · Generated 2026-10-18T02:54:56.870Z