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OpenSesame Outage History

Every past OpenSesame outage tracked by IsDown, with detection times, duration, and resolution details.

There were 90 OpenSesame outages since January 2020. The 25 outages from the last 12 months are summarized below, with incident details, duration, and resolution information.

Major May 11, 2026

May 2026: Simon Authoring - Course Translation Service Partial Outage

Detected May 11, 2026 9:52 AM CST · Resolved May 11, 2026 10:38 AM CST · Duration about 1 hour

The OpenSesame Simon Course Translation service experienced a partial outage that prevented processing of text translations for courses and caption translations for assets. The Simon Authoring Suite was affected during this incident. The issue was resolved after 46 minutes of investigation and remediation work.

Major April 29, 2026

April 2026: Oro CourseCloud Unable to Launch Courses

Detected Apr 29, 2026 7:57 AM CST · Resolved Apr 29, 2026 8:12 AM CST · Duration 15 minutes

OpenSesame's CourseCloud service experienced a major incident where users were unable to launch courses. The issue affected the OpenSesame CourseCloud component for 15 minutes before being identified and resolved with a fix implementation.

Major April 28, 2026

April 2026: Oro CourseCloud Unable to Launch Courses

Detected Apr 28, 2026 10:52 AM CST · Resolved Apr 28, 2026 11:09 AM CST · Duration 17 minutes

OpenSesame's CourseCloud service experienced a major incident where users were unable to launch courses. The issue affected the OpenSesame CourseCloud component for 17 minutes before being resolved.

Minor April 27, 2026

April 2026: Some xAPI completion statements are not being sent

Detected Apr 27, 2026 4:30 PM CST · Resolved Apr 27, 2026 8:27 PM CST · Duration about 4 hours

OpenSesame experienced an issue where xAPI completion statements were not being sent for direct integrations, causing learners' course completions to not register in their Learning Management Systems. The OpenSesame Course Delivery Platform was affected for 4 hours while the engineering team investigated and implemented a fix. The issue was resolved with all missed completion statements successfully sent to the affected LMS platforms.

Major March 10, 2026

March 2026: Course Launch Failures

Detected Mar 10, 2026 4:52 AM CST · Resolved Mar 10, 2026 5:53 AM CST · Duration about 1 hour

The OpenSesame Course Delivery Platform experienced a major incident where learners could not launch e-learning courses, encountering error messages or blank screens when attempting to start courses. The issue affected the course player functionality for approximately 1 hour. The engineering team implemented a fix and monitored the system until the incident was fully resolved.