We have had reports of users being unable to bulk download submitted files through the Assignment Inbox when assignment anonymity is on. Attempting to do so generates an error message. This has been reported to Turnitin and they are investigating. In the meantime, it is still possible to download the documents individually by going into the Feedback Studio view for a submission, clicking the download icon, and selecting the format required.
We apologise for the disruption and will provide an update when we hear anything further.