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Resolved: LockDown Browser (Mac and iPad) Failing to Launch with Canvas New Quizzes

Posted by Respondus Support on 19 February, 2026

 

Resolved: Instructure has deployed a hotfix that resolves the issue causing LockDown Browser for Mac and iPad to fail when launching Canvas New Quizzes. 
 

 

Update: Instructure Support has notified us that they have identified the cause of the problem, and plan to issue a hotfix later today.

You can check our status page for updates:  https://status.respondus.com/

 

We are investigating an issue affecting 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.

We will provide updates as more information becomes available.

 

 

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