Sigma Computing incident
High errors showing being displayed in workbooks
Sigma Computing experienced a minor incident on June 22, 2026 affecting Sigma - AWS (US), lasting 41m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Jun 22, 2026, 06:11 PM UTC
We have received reports of errors loading workbook elements on their Sigma application. We are investigating the issue at the highest priority. Our preliminary investigations indicate the following: Impacted Cloud Regions & Services: AWS aws-us-west-2 User Experience: "An error has occurred" presented on workbooks. Incident Start Time: Approximately 10:30 AM PST We will provide updates on this page when we have pertinent status updates.
- resolved Jun 22, 2026, 06:52 PM UTC
We identified a higher than usual spike in CPU usage during the timeframe below on our AWS instance. We scaled our infrastructure accordingly to accommodate this and the mitigation measures have proven effective, and our monitoring indicates that this 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 the coming days. Impacted Cloud Regions & Services: AWS US-WEST-2 User Experience: We expect users to no longer experience workbook errors. Incident Start Time: Approximately 17:30 UTC June 22, 2026 Incident End Time: Approximately 18:14 UTC June 22, 2026