@Alan Minor Project: Rigging IK Problem

After doing the rig for the feet, I wanted to do the no flip pole vector but there's only a certain distance (Translate Y) that the leg can go before the knee collapses. Is it because I had an extra joint on the leg(the fibula joint) that when I create the IK from hip to ankle, I should have created Hip to Knee to Ankle under the same settings of Rotate Plane solver and Sticky checked?