Question I don't know what the issue is called (Humanoid + Root Motion)

hi there! i have an issue when i am using Root Motions with Humanoid. i am using "Mocap Animation sets" and all the animations works great, but my humanoid character's right foot getting twisted (Official UE4 Mannequin).

take a look at the video :|

https://drive.google.com/file/d/1NAPxVnluCnzhgLpNx5QiL8YMkyeb7rz1/view?usp=sharing