Houghton Mifflin Harcourt experienced a notice incident on September 19, 2025 affecting Content and Resources and Assignments, lasting 8h 6m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Sep 19, 2025, 01:05 PM UTC
Please be advised of a possible disruption on Ed. Educators and students may experience content that loads slowly or not at all. Our teams are investigating, and additional updates will be provided here. Thank you for your patience.
- identified Sep 19, 2025, 01:41 PM UTC
Our teams have confirmed some users may experience errors or slowness when loading content, including the Home, Class Overview and Discover tabs. We are working to address this issue as quickly as possible. Thank you for your patience.
- monitoring Sep 19, 2025, 02:33 PM UTC
We have observed recovery for all services on Ed and users should not experience any errors or delays. As a precaution, we will continue monitoring performance closely today.
- resolved Sep 19, 2025, 09:11 PM UTC
After monitoring performance today without any further issues, this incident is resolved. Thank you for your patience.