Cloning decal into a player's head on spawn problem..?

What is wrong with clone face to the player's Head on spawn? It works good in Roblox Studio but not in game??

It is a local script and is in the StarterGui

local player = game.Players.LocalPlayer
save = player.FaceSave.Value

player.CharacterAdded:connect(function(character)
local clone = game.Lighting.Faces:FindFirstChild(save):Clone()
clone.Parent = player.Character.Head
wait(2)
for i,v in pairs(character.Head:GetChildren()) do
if v.ClassName == "Decal" and v.Name ~= save then
v:Destroy()
end
end
end)