Possibly, the reason may be that you are reusing frames for the different joints-- tibia_r_offset frame is created for the knee joint and then you reuse the same frame for r_brace_tib_0. I think it would be better to make a new frame specifically for this joint and call it something like 'tibia_r_b...

Hi guys, I'm currently trying to implement a biomimetic knee brace into a model for some analysis, but I'm having problems with the joints building in the GUI. I occasionally get an error message thrown when opening BodyModel_SimReadyActual_1.osim , (See Error_1.PNG ) but mostly it opens fine. The w...