ScreenGui opens onTouch but only one time? Why?

I have several morphs in my game and if you step on a part, you'll turn into that morph and a custom gui will show up for whichever character you choose. However, this only works one time. If you restart/die and pick a character again then the Gui wont show up at all. I'm using FilteringEnabled and I'm not getting any error messages.

local menu = script.Parent.CharacterGui

local function onTouched(hit)
    if (game.Players:GetPlayerFromCharacter(hit.Parent)) then
		local player = game.Players:GetPlayerFromCharacter(hit.Parent)
		if not player.PlayerGui:findFirstChild("CharacterGui") then 
			menu:Clone().Parent = player.PlayerGui
			wait()
		end
	end
end

script.Parent.Touched:connect(onTouched)

In studio mode, this script works 100% of the time so I can't figure out what the problem is.

This should work:

local menu = script.Parent:WaitForChild('CharacterGui')

local function onTouched(hit)
    if (game.Players:GetPlayerFromCharacter(hit.Parent)) then
        local player = game.Players:GetPlayerFromCharacter(hit.Parent)
        if not player.PlayerGui:FindFirstChild("CharacterGui") then
           local menuclone = menu:Clone()
           menuclone.Parent = player.PlayerGui
            wait()
        end
    end
end

script.Parent.Touched:connect(onTouched)

If this does help, please press the ^ icon and accept the answer, if it doesn't, please let me know in this answer's comments and I will alter it.