Foot / Feet IK Issue

[FnxXxUs]

I was trying to benchmark it on Blender 3.6 with the newest version of the add-on because it's been a long time since I play with it, and for hours I was quite confused with how the feet/foot/leg respond to the motion, I've tried other motions and models as well, some motions do work in motion but didn't get the rotation to play, only the location.