Turnitin / Canvas LTI - reports not generating

Community Participant

We've been experiencing an issue with the Turnitin LTI in Canvas - specifically for assignments that have the optional setting 'Generate reports on due date' enabled - similarity reports don't seem to generate on or even after the due date in Speedgrader for students who submitted prior to the due date. Instead an exclamation mark & error message 'Turnitin has not returned a score after 14 attempts to retrieve one' is displayed where the similarity report should be displayed. The reports seem to generate okay for students who submitted on the due date. We have open support tickets with Turnitin and Canvas but I was wondering if anyone else has been experiencing this issue?