I am working on a 3dsmax plugin. I have a model with biped. When I get transformation marices of a model with GetNodeTM() function, then change some of the bones of my model in max and try to get model back by calling SetNodeTM with saved transformations, model does not return to original/saved position, but it remains partialy deformed. I assume that problem is in IK that bones have. So, is there another, working way to accomplish what I need? Maybe by using animation controller?