Respondus incident
LockDown Browser (Mac and iPad) Failing to Launch with Canvas New Quizzes
Respondus experienced a notice incident on February 19, 2026 affecting LockDown Browser and Respondus Monitor (webcam), lasting 8h 27m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- investigating Feb 19, 2026, 03:05 PM UTC
We are investigating an issue relating to Canvas New Quizzes that causes LockDown Browser for Mac and iPad to fail at startup. Impact: - LockDown Browser for iPad: Displays a blank screen after the begin button is pressed - LockDown Browser for Mac: Displays error code -379 after the begin button is pressed This issue does NOT affect LockDown Browser for Windows or Chromebook. Those platforms may be used as a temporary workaround while Instructure and Respondus investigate.
- investigating Feb 19, 2026, 06:13 PM UTC
We continue to investigate this issue with Instructure.
- identified Feb 19, 2026, 08:52 PM UTC
The issue has been identified and Instructure plans to issue a hotfix shortly.
- resolved Feb 19, 2026, 11:32 PM UTC
Instructure has deployed a hotfix that resolves the issue causing LockDown Browser for Mac and iPad to fail when launching Canvas New Quizzes.