Custom Character Bugging Out When Jumping

[superconefn (conef)]

I have created a custom character for the player. Currently it is controlled by a Humanoid Root Part which is the cube you see in the video. It works perfectly when I move around using WASD but as soon as I jump, the cube just flings away in a random direction. The ragdoll works by attaching a few parts with a ball and socket constraint and connecting the head to a “puppet block” using a rope. The puppet block copies the HRPs location and teleports there every few milliseconds. The ragdoll is not connected in any way to the HRP.

Here is my code.

local block = script.Parent.PuppetBlock
local hrp = script.Parent.HumanoidRootPart
while true do
	wait(0.05)
	block.CFrame = CFrame.new(hrp.Position.X, hrp.Position.Y + 4, hrp.Position.Z)
	print("Updated")
end

Any help is appreciated!

[dev_ulmish (Ulmish)]

There is probably collision between different body parts.
Try setting all body parts CanCollide to false