# Increased app-not-found errors

- Provider: [Fly.io](https://down.guide/fly)
- Level: confirmed
- Impact: Degraded
- lasted 4h 20m
- started 2026-08-09 02:50 UTC
- Machines API
- id: DWN-de0707f09b
- Official page: https://status.flyio.net/incidents/01KZSP4AQJQ48QDS400E9QV6VZ

## Updates from Fly.io
### 2026-08-09 02:50 UTC: investigating
We are currently investigating app-not-found errors returned by Machines API calls made shortly after creating new applications.

### 2026-08-09 03:50 UTC: identified
We have identified the issue as failed insertions in a subset of Corrosion batches. These failures trigger retries, which can cause timeouts for other batches.

### 2026-08-09 04:58 UTC: identified
We’ve applied a mitigation to reduce the impact from Corrosion batch insertion retries and are continuing to monitor while affected nodes catch up.

### 2026-08-09 06:03 UTC: identified
We’ve deployed an additional mitigation to further reduce Corrosion retry pressure and are seeing improvement; we’re continuing to monitor while remaining affected nodes catch up.

### 2026-08-09 06:42 UTC: monitoring
A fix has been implemented and we are monitoring the results

### 2026-08-09 07:10 UTC: resolved
This incident has been resolved.

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