Well AutoDesk has removed the update from their support site.
And the ikRP solver has a different problem.
In my standard leg/foot rig I use an RP solver from the hip to ankle. Then SC solvers for ankle/ball and ball/toe. When I try to employ an RP solver instead the ball joint does not rotate in X. I use an SDK foot roll attribute. The IK tries to pivot from the hip/ankle when I attempt to roll the ankleGRP (with pivot on ball joint) for a foot step.
I'm hoping someone can simply provide me a link to the 5.0.1 patch.
If not, then can someone point me to an all ikRP rig for the leg/foot?