[OPEN] Similarity report fails to open from the new SpeedGrader, Round 2 [FEATURE PREVIEW]

Issue Documented: 2025-10-01
Canvas

Engineers are currently investigating the issue.

This bug is related to a Feature Preview which indicates a feature in active development. Users who opt in to the feature and join the Community user group can help improve the feature through direct feedback. 

Description

When launching the similarity report for TII LTI 1.1 or Plagiarism Framework with "Performance and Usability Upgrades for SpeedGrader" enabled, it fails to load.

Expected Behavior

Instead it should launch into the similarity report.

Workaround

Disable the new SpeedGrader as a teacher.

Steps to Reproduce

Prerequisite: Published course with a student, teacher and "Performance and Usability Upgrades for SpeedGrader", and TII 1.1 installed.

  1. As the teacher, create and assignment using TurnItIn 1.1

  2. As the student, submit to the assignment.

  3. As the teacher, open SpeedGrader and try to launch the similarity report.

  4. Notice that it failed to launch and instead prompts for a username and password for both.

Additional Info

EVAL-6019


Known issues indicate notable behaviors that have been escalated to the Canvas engineering team. Known issues are not a guarantee for an immediate resolution. This document is for informational purposes only and does not replace the Support process. If you are encountering the behavior outlined in this document, please ensure you have submitted a Support case (per your institution's escalation process) so Canvas Support can adequately gauge the overall customer impact and prioritize appropriately.

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