jmquintela 0 Posted April 7 (edited) *Problem fixed, I create a blank file with the solver and it was working, so that give me the hint that was something in the old file I built, so I digg into the asset manager config and change some setting there so the vop nodes would update correctly from their latests definitions , and all worked again. Hi, I use the IK VOP solver to build controls for a skeleton finger, it was working OK on houdini v18.5, but when I pass to 19 is not, It doesn do anything , I'v been looking where is the problem but I can't seem debug it. I attached the file, the Vops solver is inside the marked red node. I updated this post pointing the nodes I'm having problem with with an image attached. ikSolver_V522.hip Edited April 10 by jmquintela Uploaded an image and updated the file Share this post Link to post Share on other sites