This leaks from the top of the nut. What can I do? : Plumbing(01)

This leaks from the top of the nut. What can I do? : Plumbing(01)

Video Screenshot Gallery: Nutcleaning Leaks

Leaking Packing Nut Repairs - 3 Tips to Repair Valve Leaks
This leaks from the top of the nut. What can I do? : Plumbing
What would cause it to leak from the TOP of the nut? And how to fix