k so follow up to this problem. Once I add the pole vector, this happens: I checked my orientation and everything seem to be right. The only way I can get it to be normal with the pole vector in the position it is is by turning the IK's twist to 180. Which I'm pretty sure no good will come of that. But it matters little due to the fact that it's still not behaving like a leg. Am I missing something in that knee joint?