Hi Ahmet,
The ligaments are penetrating the bone as you said. But it's not a problem. The main issue is extra bending. If I think correctly the LCL and MCL should were shorten when knee is bending. In my simulation the ligaments are bending when knee is bending.

Best regards,
Sebastian

Dear community of simtk,
I have problem with LCL and MCL unphisiological bending. I runned simulation of knee bending in febio. The ligaments were bended in wrong way. I checked material mode, and its fine. What should i do to fix it?
I will be really greatfull for help.

Best Regards,
Sebastian