# RudderStack: Major incident: Instability Issue on RudderStack Control Plane on US, EU and IN region

**Summary:** RudderStack reported a major Control Plane instability incident in US, EU and IN, increasing event delivery latency across customers; ingestion was unaffected. It started at 2026-06-17 12:45 UTC and resolved at 2026-06-17 13:14 UTC, lasting 28 min. RudderStack identified the issue and monitored the system but stated no specific cause or fix. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-06-17 12:45 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/mjfkjg79m1qw](https://stspg.io/mjfkjg79m1qw)
- [Company: RudderStack](https://rewindex.com/company/rudderstack.md)
- Versions: before (none: first archived) → after incident\_version:161/zcqfhnkgm90b@2f05f74171b6
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Instability Issue on RudderStack Control Plane on US, EU and IN region
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-06-17 12:45 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-06-17 13:14 UTC
```

**6. Added: Affected components**

```diff
+ Control Plane / Public API, Data Processing Pipeline - Data Processing Pipeline (EU), Data Processing Pipeline - Data Processing Pipeline (US), Data Processing Pipeline (EU), Data Processing Pipeline (US)
```

**7. Added: Update** (investigating) · 2026-06-17 12:45 UTC

```diff
+ We are currently investigating the issue, data ingestion has NOT been affected.
```

**8. Added: Update** (investigating) · 2026-06-17 12:52 UTC

```diff
+ The issue is increasing event delivery latency across customers, event ingestion has not been affected.
```

**9. Added: Update** (monitoring) · 2026-06-17 13:04 UTC

```diff
+ We have identified the issue and we are currently monitoring the system state.
```

**10. Added: Update** (resolved) · 2026-06-17 13:14 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-06-17 12:45 UTC | Major incident: Instability Issue on RudderStack Control Plane on US, EU and IN region (this change) | degradation |

All RudderStack changes: [timeline](https://rewindex.com/company/rudderstack/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/i0e94d163d0bf3f · Markdown: https://rewindex.com/change/i0e94d163d0bf3f.md · JSON: https://rewindex.com/api/v1/changes/i0e94d163d0bf3f · Generated 2026-10-18T02:29:33.889Z