When marking in Turnitin, the scores are sent through to the gradebook. When these grades are posted, the students will receive notification on the homepage under the "Recent Feedback" area that feedback is available for them. When they follow the link from this area, it takes them through to Speedgrader instead of Turnitin. This causes confusion for the students who dont know how they should access their feedback.
The link should take you to the Turnitin assignment page when the student submission sits so they can access the correct feedback.