# Census: Major incident: Degraded UI performance

**Summary:** Census reported a major Sync Management UI degradation from 2026-09-08 20:04 UTC to 2026-09-08 22:06 UTC, lasting 2 h 1 min. A recent change blocked some UI jobs, delaying notifications and preventing dataset previews, sync configuration fields, and connection tests from loading for some organizations. A fix was implemented, and the incident was resolved. _(machine-written, sol)_
- Kind: Major incident · Label: degradation (model (Jev))
- Changed: 2026-09-08 20:04 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/bhmxmw5y8j66](https://stspg.io/bhmxmw5y8j66)
- [Company: Census](https://rewindex.com/company/census.md)
- Versions: before (none: first archived) → after incident\_version:136/qlz1pmcvlf18@782e88f4085c
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Degraded UI performance
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-09-08 20:04 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-09-08 22:06 UTC
```

**6. Added: Affected components**

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

**7. Added: Update** (investigating) · 2026-09-08 20:04 UTC

```diff
+ Some organizations are currently experiencing increased latency when running connection tests and loading source and destination objects within the sync editor.  Investigation is still ongoing.
```

**8. Added: Update** (monitoring) · 2026-09-08 21:02 UTC

```diff
+ A fix has been implemented and we are monitoring results.
```

**9. Added: Update** (resolved) · 2026-09-08 22:06 UTC

```diff
+ This incident has been resolved. A recent change prevented some UI jobs from being processed, causing some notifications to be delayed and dataset previews, sync configuration fields, and connection tests to fail to load successfully
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-09-08 20:04 UTC | Major incident: Degraded UI performance (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/ice6f41cb39ac1e · Markdown: https://rewindex.com/change/ice6f41cb39ac1e.md · JSON: https://rewindex.com/api/v1/changes/ice6f41cb39ac1e · Generated 2026-10-18T01:30:12.441Z