First killer challenge of new tome a bit bugged.
For everyone playing nurse the hits after a blink does not work. While it says Hit a survivor with your weapon 6 times it does not work with nurse after blink. So im guessing this is meant to be Hit a survivor with a basic attack 6 times.
Ill put this in bug forum to.

Comments
I could be mistaken, but hitting a survivor with your weapon means a basic attack; Nurse was nerfed by making her blink attacks not count as a basic attack so that could be why