# Retool: Major incident: Increased 500 Error Rates Preventing Some Apps from Loading

**Summary:** Retool reported a major incident involving elevated 500 errors on a back-end endpoint that prevented some apps from loading. The incident lists a start of 2025-10-16 20:23 UTC and resolution at 2025-10-16 18:45 UTC; duration is unknown, and the resolution timestamp precedes the listed start. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2025-10-16 20:23 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/ydpb6lwtn7bp](https://stspg.io/ydpb6lwtn7bp)
- [Company: Retool](https://rewindex.com/company/retool.md)
- Versions: before (none: first archived) → after incident\_version:204/v1rk7dhlttlg@bca19f333ba1
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Increased 500 Error Rates Preventing Some Apps from Loading
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2025-10-16 20:23 UTC
```

**5. Added: Resolved time**

```diff
+ 2025-10-16 18:45 UTC
```

**6. Added: Update** (resolved) · 2025-10-16 18:45 UTC

```diff
+ Elevated 500 errors on a back-end endpoint preventing some apps from loading
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2025-10-16 20:23 UTC | Major incident: Increased 500 Error Rates Preventing Some Apps from Loading (this change) | outage |

All Retool changes: [timeline](https://rewindex.com/company/retool/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/i7410dc28c051fd · Markdown: https://rewindex.com/change/i7410dc28c051fd.md · JSON: https://rewindex.com/api/v1/changes/i7410dc28c051fd · Generated 2026-10-18T02:55:04.252Z