Engineers are currently investigating the issue.
Description
When a user is enrolled in a course with a teacher role and at least two observer enrollments linked to students, they receive a page error when attempting to access items which are assigned to “Everyone” and also have an individual override for one of the students they are observing.
There does always seem to be one student who can have an override added assigned without causing the page error.
Expected Behavior
Instead teachers with observer enrollments should be able to view all items with overrides in their course without errors.
Workaround
No workaround exists at this time.
Steps to Reproduce
Pre-requisites: A user linked with two other users as an observer. A course with the observees enrolled as students and the observer enrolled as both a teacher and an observer of both students.
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Create an assignment in the course with two overrides: one for one of the two students, and the other for ‘Everyone else’.
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Access the assignment details page as the instructor.
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If you don’t receive an error report edit the overrides for the assignment and switch the individual override to be for the other student (still only assigned to one student).
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Additional Info
LX-2154
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.
