Pulled the distributor and spun the back side, it moved the rotor, spun the rotor, it moved the back side...

So what does this mean... TO me it means something is broken lol, but really can something inside the distributor fail not allowing the rotor to spin. Doesn't make sense. Dizzy out, rotor spins by moving the taper, spinn rotor taper spins. Crank car, cams move crank move so should the rotor.

So is this meaning new coil? or is something larger at work?