# Coralogix: Major incident: Real User Monitoring (RUM) feature is currently unavailable in the UI across the EU1, EU2, US1, US2, AP1, and AP3 regions.

**Summary:** Coralogix reported a major RUM UI outage across EU1, EU2, US1, US2, AP1, and AP3, leaving users with a blank page when accessing RUM. It started at 2026-04-20 14:47 UTC and lasted 34 min, resolving at 2026-04-20 15:21 UTC after a fix was implemented. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-04-20 14:47 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/ppv6h79b16j2](https://stspg.io/ppv6h79b16j2)
- [Company: Coralogix](https://rewindex.com/company/coralogix.md)
- Versions: before (none: first archived) → after incident\_version:273/29xnh0vfpv6d@8df22b9ce990
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Real User Monitoring (RUM) feature is currently unavailable in the UI across the EU1, EU2, US1, US2, AP1, and AP3 regions.
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-04-20 14:47 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-04-20 15:21 UTC
```

**6. Added: Affected components**

```diff
+ AP1 - UI - RUM, AP3 - UI - RUM, EU1 - UI - RUM, EU2 - UI - RUM, UI - RUM, US1 - UI - RUM, US2 - UI - RUM
```

**7. Added: Update** (investigating) · 2026-04-20 14:47 UTC

```diff
+ We are currently investigating an issue affecting the Real User Monitoring (RUM) feature across the EU1, EU2, US1, US2, AP1 and AP3 regions. At this time, the issue appears to be UI-related, with users encountering a blank page when accessing the RUM section. Our team is actively working to identify the root cause and restore full functionality as quickly as possible. We will provide further updates as more information becomes available. If you have any questions or require assistance, please contact us via chat or email at support@coralogix.com
```

**8. Added: Update** (identified) · 2026-04-20 14:49 UTC

```diff
+ Our engineering team has identified the issue and is currently implementing a fix.
```

**9. Added: Update** (identified) · 2026-04-20 15:01 UTC

```diff
+ The Real User Monitoring (RUM) UI functionality has been restored and is now fully operational in the EU1, EU2, AP1, and AP3 regions. Our teams are currently investigating the remaining affected regions, US1 and US2. Further updates will be provided as soon as they become available.
```

**10. Added: Update** (monitoring) · 2026-04-20 15:17 UTC

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

**11. Added: Update** (resolved) · 2026-04-20 15:21 UTC

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

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-04-20 14:47 UTC | Major incident: Real User Monitoring (RUM) feature is currently unavailable in the UI across the EU1, EU2, US1, US2, AP1, and AP3 regions. (this change) | outage |

All Coralogix changes: [timeline](https://rewindex.com/company/coralogix/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/i0aa24a5163a436 · Markdown: https://rewindex.com/change/i0aa24a5163a436.md · JSON: https://rewindex.com/api/v1/changes/i0aa24a5163a436 · Generated 2026-10-18T00:39:31.723Z