How to size a r6 Player?

When I change the HumanoidDescription of an R6 Character, the player doesn’t update. Is there an alternative way without using LoadCharacterWithHumanoidDescription?

Are you trying to resize/scale the R6 character? If yes, then I use the following to achieve that:

local function resizeR6(clonePlayer)
	local Motors = {}
	table.insert(Motors, clonePlayer.HumanoidRootPart.RootJoint)
	for i,Motor in pairs(clonePlayer.Torso:GetChildren()) do
		if Motor:IsA("Motor6D") == false then continue end
		table.insert(Motors, Motor)
	end
	for _, v in pairs(Motors) do
		v.C0 = CFrame.new((v.C0.Position * characterScale)) * (v.C0 - v.C0.Position)
		v.C1 = CFrame.new((v.C1.Position * characterScale)) * (v.C1 - v.C1.Position)
	end
-- RESIZE PARTS
	for _, Part in pairs(clonePlayer:GetChildren()) do
		if Part:IsA("BasePart") == false then continue end
		Part.Size = Part.Size * characterScale
		if Part.Name == "Head" then
			Part.Mesh.Scale = Vector3.new(1.5, 1.5, 1.5) 
		end
	end
-- RESIZE ACCESSORIES
	for _, Accessory in pairs(clonePlayer:GetChildren()) do
		if Accessory:IsA("Accessory") == false then continue end
		Accessory.Handle.AccessoryWeld.C0 = CFrame.new((Accessory.Handle.AccessoryWeld.C0.Position * characterScale)) * (Accessory.Handle.AccessoryWeld.C0 - Accessory.Handle.AccessoryWeld.C0.Position)
		Accessory.Handle.AccessoryWeld.C1 = CFrame.new((Accessory.Handle.AccessoryWeld.C1.Position * characterScale)) * (Accessory.Handle.AccessoryWeld.C1 - Accessory.Handle.AccessoryWeld.C1.Position)
		local AccessoryMesh = Accessory.Handle:FindFirstChild("Mesh")
		if AccessoryMesh then
			Accessory.Handle.Mesh.Scale *= characterScale
		end
		local AccessoryPart = Accessory.Handle:FindFirstChild("Part")
		if AccessoryPart then
			Accessory.Handle.Part.Scale *= characterScale
		end
	end
end

When the character loads, check it for Torso, if true, do that above.

In HumanoidDescription there are scale properties such as HeadScale, just add them as NumberValue inside the Humanoid