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Outage in Respondus

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

Resolved Minor
February 19, 2026 - Started about 2 months ago - Lasted about 9 hours
Official incident page

Incident Report

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.

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Latest Updates ( sorted recent to last )
RESOLVED about 2 months ago - at 02/19/2026 11:32PM

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

IDENTIFIED about 2 months ago - at 02/19/2026 08:52PM

The issue has been identified and Instructure plans to issue a hotfix shortly.

INVESTIGATING about 2 months ago - at 02/19/2026 06:13PM

We continue to investigate this issue with Instructure.

INVESTIGATING about 2 months ago - at 02/19/2026 03:05PM

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.

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