If you’re submitting an assignment via TurnItIn on Learn, please note the following:
This year, the first time you submit a file, you’ll be asked to agree to the TurnItIn user agreement. On some displays, particularly Macs running the Safari browser, the dialogue is cropped so that the buttons on the bottom are not visible, or only partially visible. If the display can't be scrolled, you can’t see the buttons to click the left-hand 'I agree' one. As a consequence you can't submit anything.
The workaround is to submit your first assignment from a PC, where the buttons are either initially visible or accessible by scrolling.
TurnItIn are working on a solution to the issue.