Control Rig and Mixamo, Pole Vector Breaks Leg

Hi!
I’m making a simple Control Rig to a Mixamo character to able to make an IK leg chain and do some new animations.
So the problem is that Pole Vector doen’t work well, instead of moving the leg on the knee position, it rotates both bones from the head at time.
It’s a very simple Control Rig but I can’t fix that.
Anyone has the same issue??
It’s a mixamo rig problem or what?
Thank you!

I tried the “Passive marker man”, and I notice that if I apply a BasicIK with controls that are positioned on the foot, as soon as the IK kicks in, the foot shifts up, like if there is an offset, while the default pose is perfectly fine.
I think that this can be caused by the default pose ( bind pose in Maya ) not being properly set, so that’s why there are those issues.
I suggest you to import the character in Maya, save a new bind pose, and then reimport the SK in Unreal and check again with Control Rig.