Thanks for you help. I am using creo 2.0 M030. I am not sure what went wrong but with your model, the autogem says can't create the elements. Without no specific info.
I don't have that module but thanks for sharing.
The upper arms have two pin constraints. I wonder if that is causing the failure.
I don't know what else to tell you. Hopefully someone with more knowledge than I will shime in soon. You could try opening a case with PTC too.