Character Model does not follow cursor with Raycast

[HystericalBinky (BinkyYT)]

I am creating a Tower Defense type game, I have made this script that should make a spawned Character Model follow my cursor wherever it goes, however, instead when I click the button that spawns it, it stays where it spawns, and does not move around at all when I move my cursor, does anyone know the problem and how to fix it? Here is the script.

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local RunService = game:GetService("RunService")
local UserInputService = game:GetService("UserInputService")

local towers = ReplicatedStorage:WaitForChild("Towers")
local camera = workspace.CurrentCamera
local gui = script.Parent

local towerToSpawn = nil

local function MouseRaycast(blacklist)
	local mousePosition = UserInputService:GetMouseLocation()
	local mouseRay = camera:ViewportPointToRay(mousePosition.X, mousePosition.Y)
	local raycastParams = RaycastParams.new()
	
	raycastParams.FilterType = Enum.RaycastFilterType.Exclude
	raycastParams.FilterDescendantsInstances = blacklist
	
	local raycastResult = workspace:Raycast(mouseRay.Origin, mouseRay.Direction * 1000, raycastParams)
	
	return raycastResult
end

local function AddPlaceholderTower(name)
	local towerExists = towers:FindFirstChild(name)
	if towerExists then
		local towerToSpawn = towerExists:Clone()
		towerToSpawn.Parent = workspace.Towers
	end
end

gui.Spawn.Activated:Connect(function()
	AddPlaceholderTower("Agent")
end)

UserInputService.InputBegan:Connect(function(input, processed)
	if processed then
		return
	end
	
	if input.UserInputType == Enum.UserInputType.MouseButton1 then

	end
end)

RunService.RenderStepped:Connect(function()
	if towerToSpawn then
		local result = MouseRaycast({towerToSpawn})
		if result and result.Instance then
			local x = result.Position.X
			local y = result.Position.Y
			local z = result.Position.Z

			local cframe = CFrame.new(x,y,z)
			towerToSpawn:SetPrimaryPartCFrame(cframe)
		end
	end
end)

[HystericalBinky (BinkyYT)]

Solved, had to remove the local infront of “towerToSpawn = towerExists:Clone()” since it already creates the variable at the top.