# Amplitude: Major incident: Slow Loading for Web App Features in the EU Region

**Summary:** Amplitude reported major elevated latency in the EU affecting Analytics - Web Application, Audiences - Web Application, Experiment - Web Application, Guides & Surveys, Session Replay and Web Application. The incident ran from 2026-07-13 06:15 UTC to 2026-07-13 08:39 UTC (2 h 23 min); a rollback restored performance. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-07-13 06:15 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/1y8mjytvh0mr](https://stspg.io/1y8mjytvh0mr)
- [Company: Amplitude](https://rewindex.com/company/amplitude.md)
- Versions: before (none: first archived) → after incident\_version:49/x5mhkxl66k88@ed6ee3f9c9fa
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Slow Loading for Web App Features in the EU Region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-13 06:15 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-13 08:39 UTC
```

**6. Added: Affected components**

```diff
+ Analytics - Web Application, Audiences - Web Application, Experiment - Web Application, Guides & Surveys, Session Replay, Web Application
```

**7. Added: Update** (investigating) · 2026-07-13 06:15 UTC

```diff
+ We are investigating elevated latency affecting services in our EU production environment. Some customers may experience slower response times while our team works to identify the cause and mitigate impact. We will provide another update within 60 minutes or sooner if we have more information
```

**8. Added: Update** (investigating) · 2026-07-13 07:56 UTC

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

**9. Added: Update** (monitoring) · 2026-07-13 08:20 UTC

```diff
+ We implemented a rollback to mitigate elevated latency affecting services in our EU production environment, and performance has recovered. We are continuing to monitor the environment closely to confirm stability.
```

**10. Added: Update** (resolved) · 2026-07-13 08:39 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-13 06:15 UTC | Major incident: Slow Loading for Web App Features in the EU Region (this change) | degradation |

All Amplitude changes: [timeline](https://rewindex.com/company/amplitude/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/id5c97931825159 · Markdown: https://rewindex.com/change/id5c97931825159.md · JSON: https://rewindex.com/api/v1/changes/id5c97931825159 · Generated 2026-10-18T00:04:56.039Z