# Sigma Computing: Sigma organizations hosted on AWS US are not loading

- Impact (vendor’s label): critical
- Status: resolved
- Started: 2023-11-08 20:53 UTC · Resolved: 2023-11-08 21:54 UTC · Duration: 1.0 h
- Updates: 3 · Affected components: AWS - Sigma - AWS (US), Sigma - AWS (US)
- [Vendor status page: https://stspg.io/9vn4jmqx06r5](https://stspg.io/9vn4jmqx06r5)
- [Company: Sigma Computing](https://rewindex.com/company/sigma-computing.md)

## Summary

A critical outage left Sigma organizations hosted on AWS US stuck on loading screens, with impact starting approximately 20:39 UTC November 08, 2023. The incident record ran from 2023-11-08 20:53 UTC to resolution at 2023-11-08 21:54 UTC (computed duration: 1 h 0 min); mitigation measures restored app loading. _(machine-written, sol)_
## Timeline of updates

- **investigating** 2023-11-08 20:53 UTC: We are investigating an issue in our infrastructure causing Sigma organizations hosted on AWS US to be in a loading state. We are treating this as our highest priority. Our apologies for any inconvenience caused. Impacted Cloud Regions & Services: Sigma users hosted on AWS US User Experience: Attempting to load Sigma app shows a loading screen Incident Start Time: Approximately 20:39 UTC November 08, 2023
- **monitoring** 2023-11-08 21:13 UTC: Our engineers have implemented mitigation measures to circumvent the issue and we are monitoring their effect closely. Impacted Cloud Regions & Services: Sigma users hosted on AWS US User Experience: Users will be able to load the Sigma app successfully Incident Start Time: Approximately 20:39 UTC November 08, 2023 Incident End Time: Approximately 20:57 UTC November 08, 2023
- **resolved** 2023-11-08 21:54 UTC: The mitigation measures have proven effective, and the issue is resolved. We will perform a root cause analysis (RCA) and publish our findings in a postmortem note to the Sigma Community site in coming days. Impacted Cloud Regions & Services: Sigma users hosted on AWS US User Experience: Users will be able to load the Sigma app successfully Incident Start Time: Approximately 20:39 UTC November 08, 2023 Incident End Time: Approximately 20:57 UTC November 08, 2023

## Rewindex changes for this incident

- 2023-11-08 20:53 UTC: [Critical incident: Sigma organizations hosted on AWS US are not loading](https://rewindex.com/change/i267433d28e8f36.md)


---
Canonical: https://rewindex.com/company/sigma-computing/incidents/db5ydck3zcxy · Markdown: https://rewindex.com/company/sigma-computing/incidents/db5ydck3zcxy.md · JSON: https://rewindex.com/api/v1/companies/sigma-computing/incidents/db5ydck3zcxy · Generated 2026-10-18T10:28:47.433Z