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Outage in Cornerstone

Minor Issue - Functionality - Error accessing xAPI Statement Viewer across FRA, UK, and US Swimlanes

Resolved Major
September 04, 2026 - Started 19 days ago - Lasted about 8 hours
Official incident page

Incident Report

Summary AI Generated

Cornerstone experienced a 7.9-hour incident affecting the xAPI Statement Viewer and xAPI statement processing across FRA, UK, and US swimlanes, causing delays and functional errors for impacted client portals. Engineers identified the root cause and deployed a fix, after which no further errors were observed during a monitoring period. The incident was fully resolved, with a formal Root Cause Analysis expected within 7–10 business days.

This swimlane is experiencing some functional issues accessing the xAPI Statement viewer and may have issues with xAPI statement processing. Clients with portals in this swimlane may experience delays or issues executing some tasks. This is our top priority and we are working to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.

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Latest Updates ( sorted recent to last )
RESOLVED 19 days ago - at 09/05/2026 03:44AM

After a period of monitoring with no repeat occurrences we are marking this incident Resolved. A formal Root Cause Analysis will be available 7-10 business days from Resolution.

MONITORING 19 days ago - at 09/05/2026 01:50AM

A fix has been deployed and we are seeing no errors. We will monitor for 1 hour before placing this in a Resolved status.

IDENTIFIED 19 days ago - at 09/05/2026 01:06AM

We are still working on a fix and will confirm once it has been successfully deployed. This remains a top priority for our teams and we will continue sharing updates as they become available or at least every 2 hours.

IDENTIFIED 19 days ago - at 09/04/2026 11:02PM

Cornerstone Engineering has identified the issue and is currently working on a fix. We will update once the issue is Resolved.

INVESTIGATING 19 days ago - at 09/04/2026 09:48PM

We are continuing to investigate this issue and will share an update at least every 2 hours or until we have more.

INVESTIGATING 19 days ago - at 09/04/2026 07:53PM

This swimlane is experiencing some functional issues accessing the xAPI Statement viewer and may have issues with xAPI statement processing. Clients with portals in this swimlane may experience delays or issues executing some tasks. This is our top priority and we are working to resolve the problem as soon as possible. Please check back periodically for additional updates, which will be posted as they become available.

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