BETA Rubrics with null long description on criteria give page error


This behavior has been resolved and deployed to the production environment as of 5/7/24.


  • When a rubric has a criterion with a null long description, attempting to view the rubric in BETA will produce a page error with an unknown keywords: title caused by unknown keywords: title error in /error_reports

    • In my testing, copying a rubric with a criterion with a blank long description from another course is the easiest way to end up with a null long description (omitted long descriptions are set to an empty string when creating rubrics in the UI or via API).

Expected Behavior

Instead rubrics which display successfully in test and production should display in beta.


No workaround exists at this time.

Steps to Reproduce

Prerequisites: Two courses in beta.

  1. Create a rubric in one of the courses with a criterion with the long description left blank.

  2. Copy the rubric into the other course then attempt to view the rubric in the course and note the page error.

Additional Info


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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