3ds Max: wire parameters problem in blocks

I made for my rig a big spline rotator that controls with wire parameters the other small rotators of the spine of my character.

just like in the rig tutorial


now, with this spline rotator my characater bends a bit when he walks , but when i use block for my walk cycle it seems that the big spline rotator still rotates but it doesn't affect the other small rotators wich is wired to, and my character doesn't bend anymore.

i tried to apply a slave controller to my small rotators, but it didn't seem to help :shrug:


did any1 ran into this problem