# Census: Major incident: UI slowdown across several areas

**Summary:** Census reported a major slowdown in its Sync Management UI affecting Model Previews, Metadata Refreshes and Sync Alerts, starting 2024-03-26 21:53 UTC and resolved at 2024-03-26 22:47 UTC (53 min). Census attributed it to a faulty deploy and restored task processing by deploying the previous job processor version; metrics showed no impact on sync performance or scheduling. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2024-03-26 21:53 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/rzj3px4wltmr](https://stspg.io/rzj3px4wltmr)
- [Company: Census](https://rewindex.com/company/census.md)
- Versions: before (none: first archived) → after incident\_version:136/y1pwbglz31c8@d1003a030d0c
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ UI slowdown across several areas
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2024-03-26 21:53 UTC
```

**5. Added: Resolved time**

```diff
+ 2024-03-26 22:47 UTC
```

**6. Added: Affected components**

```diff
+ Census Sync Management UI
```

**7. Added: Update** (investigating) · 2024-03-26 21:53 UTC

```diff
+ We have identified slowdowns in the Census UI associated with several areas: * Model Previews * Metadata Refreshes * Sync Alerts These are related to a slowdown in our job processing engine. At this time, our metrics do not show that sync performance or scheduling is affected but we are investigating these as well.
```

**8. Added: Update** (identified) · 2024-03-26 22:04 UTC

```diff
+ We have identified a faulty deploy and we are rolling it back
```

**9. Added: Update** (monitoring) · 2024-03-26 22:27 UTC

```diff
+ A previous version of the job processor has been deployed and these tasks are once again being completed. We are continuing to monitor
```

**10. Added: Update** (resolved) · 2024-03-26 22:47 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2024-03-26 21:53 UTC | Major incident: UI slowdown across several areas (this change) | degradation |

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/ib0424089683344 · Markdown: https://rewindex.com/change/ib0424089683344.md · JSON: https://rewindex.com/api/v1/changes/ib0424089683344 · Generated 2026-10-18T03:55:43.880Z