# Sigma Computing: Materialization and CSV upload failures

- Impact (vendor’s label): critical
- Status: resolved
- Started: 2023-04-19 17:16 UTC · Resolved: 2023-04-19 20:32 UTC · Duration: 3.3 h
- Updates: 1
- [Vendor status page: https://status.sigmacomputing.com/incidents/hl67qqlfhpmf](https://status.sigmacomputing.com/incidents/hl67qqlfhpmf)
- [Company: Sigma Computing](https://rewindex.com/company/sigma-computing.md)

## Timeline of updates

- **resolved** 2023-04-19 20:32 UTC: Current Status: Our engineers have implemented mitigation measures to circumvent the issue and we are seeing materializations and CSV uploads are operational now. Impacted Cloud Regions & Services: All Connection types, AWS and GCP deployments. User Experience: We expect users should no longer see materialization and CSV upload failures due to this incident. Incident Start Time: Approximately 13:00 UTC April 17, 2023 Incident End Time: Approximately 17:30 UTC April 19, 2023 We will perform a root cause analysis (RCA) and publish our findings in a postmortem note to the Sigma Community site in coming days. You will receive a notification when that occurs.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._


---
Canonical: https://rewindex.com/company/sigma-computing/incidents/hl67qqlfhpmf · Markdown: https://rewindex.com/company/sigma-computing/incidents/hl67qqlfhpmf.md · JSON: https://rewindex.com/api/v1/companies/sigma-computing/incidents/hl67qqlfhpmf · Generated 2026-10-18T11:26:05.481Z