Odd player movement after a part is welded

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1

Hey DevForum, I’ve been stumped on something for a while.

I’m making a script where you can toggle hair and transformations through keybinds, but when I add the hair the player movement starts getting wonky. The hair mesh is massless and CanCollide is turned off, and is welded to the head. The problem persists after the mesh along with the weld is removed. Here’s an example:

If you need the code, just ask.

2

The code would be most helpful. :slight_smile:

3

Code that places the hair:

	local user = game.Players.LocalPlayer
	local root = user.Character.PrimaryPart
	root.Name = "valid"
		local accessories = user.Character:GetDescendants()
		for i,v in pairs(accessories) do
		if v:IsA("Accessory") then
			v.Handle.Transparency = 1
		end
	end
	
	local hair = game:GetService("ReplicatedStorage").goku:Clone()
	local head = user.Character.Head
	head.Size = Vector3.new(1,1,1)
	hair.Parent = head
	hair.Massless = true
	hair.CanCollide = false
	local weld = Instance.new("Weld",hair)
	weld.Part0 = head
	weld.Part1 = hair
	weld.C0 = CFrame.Angles(0,math.rad(90),0) * CFrame.new(-.55,1,-.05)
end
4

Code that removes the hair:

	local user = game.Players.LocalPlayer
	local root = user.Character.PrimaryPart
	root.Name = "invalid"
	local accessories = user.Character:GetDescendants()
	for i,v in pairs(accessories) do
		if v:IsA("Accessory") then
			v.Handle.Transparency = 0
		end
	end

	local hair = user.Character.Head.goku
	hair:Destroy()
end
5

I figured out the problem. It was that when the HumanoidRootPart’s name was changed, the RootPart of the character model changed to the UpperTorso.

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