# Census: Critical incident: Service incident impacting app and sync execution

**Summary:** Census reported a critical outage affecting the Census Sync Management UI and Sync Engine from 2026-07-07 15:45 UTC to 2026-07-07 18:22 UTC, lasting 2 h 36 min. Census linked the issue to a recent database migration; a fix was implemented, and all systems were operational at resolution. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-07-07 15:45 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/qn9pzxpmx09m](https://stspg.io/qn9pzxpmx09m)
- [Company: Census](https://rewindex.com/company/census.md)
- Versions: before (none: first archived) → after incident\_version:136/nl39blnhpc49@ab7fe6b36383
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Service incident impacting app and sync execution
```

**2. Added: Impact**

```diff
+ critical
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-07-07 15:45 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-07-07 18:22 UTC
```

**6. Added: Affected components**

```diff
+ Census Sync Management UI, Sync Engine
```

**7. Added: Update** (investigating) · 2026-07-07 15:45 UTC

```diff
+ The engineering team is currently investigating a production issue.
```

**8. Added: Update** (investigating) · 2026-07-07 15:45 UTC

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

**9. Added: Update** (identified) · 2026-07-07 15:47 UTC

```diff
+ An issue related to a recent database migration has been identified. The engineering team is working on safely rolling back the change.
```

**10. Added: Update** (identified) · 2026-07-07 15:54 UTC

```diff
+ The web application is operational and sync execution is starting.
```

**11. Added: Update** (monitoring) · 2026-07-07 16:01 UTC

```diff
+ A fix has been implemented and we're monitoring the results.
```

**12. Added: Update** (resolved) · 2026-07-07 18:22 UTC

```diff
+ This incident has been resolved and all systems are operational.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-07-07 15:45 UTC | Critical incident: Service incident impacting app and sync execution (this change) | outage |

All Census changes: [timeline](https://rewindex.com/company/census/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/i62d4e93cdb027d · Markdown: https://rewindex.com/change/i62d4e93cdb027d.md · JSON: https://rewindex.com/api/v1/changes/i62d4e93cdb027d · Generated 2026-10-18T00:37:58.468Z