Houghton Mifflin Harcourt incident
Classes and Content Not Loading on Ed
Resolved after 3 days 22 hours, affecting Content and Resources, on January 8, 2026.
We are continuing to monitor for any further issues.
Affected components
Update timeline
- investigating Jan 08, 2026, 07:52 PM UTC
We are currently investigating an issue where classes and some content are not displaying on Ed. We apologize for the inconvenience and will post another update as soon as more information is available.
- monitoring Jan 08, 2026, 08:50 PM UTC
Classes and content on Ed are now displaying as expected. We are closely monitoring performance and will update this page again tomorrow. Thank you.
- investigating Jan 09, 2026, 03:02 PM UTC
During the monitoring period we've observed some classes and content not displaying as expected. HMH engineers continue to investigate.
- monitoring Jan 09, 2026, 05:45 PM UTC
Thank you for your patience. Action has been taken to resolve the issue. As a result, classes and content are once again loading as expected. We will continue to closely monitor performance on Ed.
- monitoring Jan 09, 2026, 10:36 PM UTC
We are continuing to monitor for any further issues.
- resolved Jan 12, 2026, 06:49 PM UTC
This incident has been resolved.
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