# Loops: Major incident: Increased 500 errors

**Summary:** _summary pending_
- Kind: Major incident · Label: major (vendor)
- Changed: 2025-09-03 08:14 UTC · Detected: 2026-10-19 18:53 UTC
- [Source: https://stspg.io/d0c9kns4mcf1](https://stspg.io/d0c9kns4mcf1)
- [Company: Loops](https://rewindex.com/company/loops.md)
- Versions: before (none: first archived) → after incident\_version:743/2b687z4b9j2r@c5d49c8e1be0
- Change 1 of 1 for this incident

Incident page (full timeline): [Increased 500 errors](https://rewindex.com/company/loops/incidents/2b687z4b9j2r.md)
## What changed

**1. Added: Title**

```diff
+ Increased 500 errors
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ postmortem
```

**4. Added: Start time**

```diff
+ 2025-09-03 08:14 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-09-03 08:44 UTC
```

**6. Added: Affected components**

```diff
+ API, App, Campaigns, Email Sending - Campaigns, Email Sending - Loops, Email Sending - Transactional, Loops, SMTP Relay, Transactional, Webhooks
```

**7. Added: Update** (investigating) · 2025-09-03 08:14 UTC

```diff
+ We are currently investigating this issue.
```

**8. Added: Update** (identified) · 2025-09-03 08:33 UTC

```diff
+ The issue has been identified and a fix is being implemented.
```

**9. Added: Update** (monitoring) · 2025-09-03 08:38 UTC

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

**10. Added: Update** (resolved) · 2025-09-03 08:44 UTC

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

**11. Added: Update** (postmortem) · 2025-09-04 14:00 UTC

```diff
+ Between Sept 3 03:40 UTC and Sept 3 08:30 UTC Loops experienced a period of elevated error rates where API requests intermittently returned 500’s due to high CPU use on our primary database. We resolved the issue and additionally made monitoring and process changes to speed responses in the future.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-09-03 08:14 UTC | Major incident: Increased 500 errors (this change) | major |

All Loops changes: [timeline](https://rewindex.com/company/loops/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._


---
Canonical: https://rewindex.com/change/id2636ea5b47c50 · Markdown: https://rewindex.com/change/id2636ea5b47c50.md · JSON: https://rewindex.com/api/v1/changes/id2636ea5b47c50 · Generated 2026-10-20T00:00:47.212Z