Motor6D's transform does not working

motor6d is not working as title.

local poseTween = game:GetService("TweenService"):Create(pose.part, TweenInfo.new(playingTime, Enum.EasingStyle[pose.style], Enum.EasingDirection[pose.direction]), {Transform = pose.cf}):Play()

I verified that this tween works becuase when I put C0 on Transform, it worked.
How can I make it so motor6d moves with transform?