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Sigma Computing: Service disruption affecting Azure-hosted customers

MinorStatus: resolvedStarted Resolved (5.5 h)2 updatesstspg.io (opens in new tab)
Part of an outage event

Azure outage, Oct 29, 2025 · 23 vendors, 23 incidents

Sigma Computing’s incident blames Azure as the cause. (hop 1, posted +33 min vs the first vendor naming Azure)

“…Service disruption affecting Azure-hosted customers This incident has been resolved. This incident has been resolved. We are currently investigating a partial service disruption affecting Azure-hosted…”

Swipe sideways to see the whole diagram.

Azureown incident not archivedWithin an hour4 vendors, 4 blamed AzureDevin (Cognition), Smartsheet, Sigma Computing, Elastic CloudLater1 vendor, 1 blamed AzureSpeechmaticsSigma Computing (this incident)posted +33 min
Azureown incident not archivedWithin an hour4 vendors, 4 blamed AzureDevin (Cognition), Smartsheet,Sigma Computing, ElasticCloudLater1 vendor, 1 blamed AzureSpeechmaticsSigma Computing (this incident)posted +33 min
Sigma Computing is outlined in red. Groups show up to a few vendors each; the event page lists every incident.
Mermaid source
flowchart LR
  root["Azure<br/>own incident not archived"]:::inferred
  h1["Within an hour<br/>4 vendors, 4 blamed Azure<br/>Devin (Cognition), Smartsheet, Sigma Computing, Elastic Cloud"]:::blames
  root --> h1
  later["Later<br/>1 vendor, 1 blamed Azure<br/>Speechmatics"]:::blames
  root --> later
  me["Sigma Computing (this incident)<br/>posted +33 min"]:::me
  h1 --- me

Full event: timeline, evidence and all vendors →

Detected automatically from incidents that started together and named the same provider. A link means one vendor’s incident named another, not a confirmed cause.

Affected components: Azure - Sigma - Azure (US)Sigma - Azure (US)Azure - Sigma - Azure (UK)Sigma - Azure (UK)Azure - Sigma - Azure (Europe)Sigma - Azure (Europe)Azure - Sigma - Azure (Canada)Sigma - Azure (Canada)

Timeline of updates

  1. monitoring

    We are currently investigating a partial service disruption affecting Azure-hosted customers. Users may notice issues with loading, displaying, or uploading images and other custom assets. Initial reports suggest this appears to be caused by an Azure CDN outage. We are actively monitoring the situation.

  2. resolved

    This incident has been resolved.

Archive proof

Rewindex commits each version of an incident it captures to a daily checkpoint, chains it to the day before, and has the checkpoint timestamped by FreeTSA and DigiCert. That proves this record existed by then and has not been changed since, by anyone, Rewindex included.

How the archive is checked, and what it cannot prove.

Impact, status and times are the vendor’s own, as last archived. View on stspg.io (opens in new tab).

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