# SonarCloud EU and US: High Scanner Error Rate for AutoScan C/C++

- Provider: [SonarCloud](https://down.guide/sonarcloud)
- Level: confirmed
- Impact: Partial outage
- lasted 2h 29m
- started 2026-05-29 10:21 UTC
- Automatic Analysis, Automatic Analysis
- eu, us
- id: DWN-19ba7108ea
- Official page: https://stspg.io/lsmnbyx7br22

## Updates from SonarCloud
### 2026-05-29 10:21 UTC: investigating
We are experiencing an issue resulting in high scanner error rate for AutoScan C/C++ for both SonarCloud EU and US. The issue is currently being investigated.
Additional updates will be shared on this page as necessary. We apologize for any inconvenience. 
To report additional issues or share your observations, please visit the Sonar Community or contact Support.

### 2026-05-29 12:26 UTC: monitoring
We have successfully applied a fix to the SonarCloud EU region, and AutoScan error rates for C/C++ have returned to normal.
Mitigation work for the SonarCloud US region is currently underway. We are closely monitoring the progress and will provide another update as soon as the US region is fully restored.

### 2026-05-29 12:50 UTC: resolved
The mitigation has now been successfully applied to the SonarCloud US region as well. AutoScan error rates for C/C++ have returned to normal operating levels across both EU and US regions.
Thank you for your patience while we worked through this.

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