With tasks-read and tasks-create permissions, I can click the button to create a new task however, I cannot access some of the fields (including the required ones in both of the current tasks). Oddly, I can access some of the fields.
Once I add "tasks-update" permission, the tasks become creatable. Not only does this seem odd but it's not how any of the other permissions I've tested function, so I'm filing for eval.
I did not test older NX3 or NX2 at this time. Debug off during these tests.