Issue affecting assessment delivery in VA (us-east-1)

Incident Report for Learnosity

Postmortem

Affected Systems and Regions

On 2026-02-04, Learnosity experienced an availability incident impacting Questions API access for customers in the AMER region. The issue began at approximately 18:02 UTC and was formally declared resolved at 18:51 UTC. The total duration of customer impact was approximately 49 minutes.

Investigation

The issue was first detected when the Items API attempted to initialize the dependent Questions API. The incident was traced to a misconfiguration within the content delivery network servicing the AMER region, causing a SSL certificate error..

During a certificate management task, the distribution responsible for serving questions.learnosity.com was configured with an SSL certificate that did not match the *.learnosity.com domain nomenclature. This caused browsers and client systems to reject connections to the affected subdomain.

Resolution

Once the issue was identified, the response team updated the affected distribution to use the correct SSL certificate. Service was fully restored after the change was completed.

Prevention

Learnosity is strengthening certificate deployment and validation processes to ensure that domain mappings are verified prior to rollout. Additional safeguards have been added to prevent cross-domain certificate assignments and to improve monitoring for sudden traffic drops that may indicate certificate-related failures.

Posted Feb 10, 2026 - 12:20 EST

Resolved

As of 19:12 UTC, traffic has returned to normal and everything remains stable. We have resolved the incident affecting assessments in VA (us-east-1).

Learnosity Support and Systems Engineering teams will follow up with a post mortem once we have completed root cause analysis and finalized any next steps or preventative measures required.

Please reach out if you have any questions or concerns.

Posted Feb 04, 2026 - 14:15 EST

Monitoring

As of 18:52 UTC, the Learnosity System Engineering team has put a fix in place. We will continue to monitor for some time to ensure a stable recovery, but all services are operational again.

Learnosity Support and Systems Engineering teams will continue to actively monitor the issue, and will follow on with an update and resolution as soon as possible.

Posted Feb 04, 2026 - 13:55 EST

Identified

As of 18:30 UTC, we are currently experiencing an issue affecting assessment delivery in VA (us-east-1).

Learnosity Support and Systems Engineering teams are actively investigating the issue, and will follow on with an update and resolution as soon as possible.

Posted Feb 04, 2026 - 13:34 EST

This incident affected: AMER || Authoring (AMER Authoring (Summary), Loading and rendering of Item/Activity Edit view, Loading and rendering of Question Edit view), AMER || Assessment (AMER Assessment (Summary), Loading and rendering of assessment UI, Loading and rendering of Items/Questions/Features, Saving of student responses), and AMER || Analytics (AMER Analytics (Summary), Loading and rendering of reports).