Why when I step on a morph my body goes invisible, but when I step on it again, it doesn't?

When I step on a morph I made, everything works and I get changed into the morph. Then when I step on a button it changed me back to normal, and makes my body parts visible again. However after that if I step on the morph again, my body parts don't go invisible. Why is this and how do I fix this?

Here is the part that turns you back to normal

function BTN(hit)
	if hit.Parent:findFirstChild("Humanoid") ~= nil and hit.Parent:findFirstChild("Chest") ~= nil then
		local char = hit.Parent
		for i,v in pairs(char:GetChildren()) do
			if v.Name == "Chest" then
				char.Chest:Destroy()
			elseif v.Name == "Head" or v.Name == "Left Leg" or v.Name == "Left Arm" or v.Name == "Right Leg" or v.Name == "Right Arm" or v.Name == "Torso" then
				v.Transparency = 0
			end
		end
	end
	if game.Lighting:FindFirstChild(hit.Parent.Name) ~= nil then
		for i,v in pairs(game.Lighting:FindFirstChild(hit.Parent.Name):GetChildren()) do
			v.Parent = hit.Parent
		end
	end
	game.Lighting:FindFirstChild(hit.Parent.Name.." Bool").Value = false
end
------------------------------------------------
wait()
part4.Touched:Connect(BTN) -- Back to normal

And here is the morph invisibility part

function Invisibility3(hit)
	if hit.Parent:findFirstChild("Humanoid") then
		local char = hit.Parent
		if game.Lighting:findFirstChild(hit.Parent.Name.." Bool") == nil then
			local Bool = Instance.new("BoolValue",game.Lighting)
			Bool.Name = (char.Name.." Bool")
			
		end
		for i,v in pairs(char:GetChildren()) do
			if game.Lighting:FindFirstChild(hit.Parent.Name.." Bool").Value == false then
				game.Lighting:FindFirstChild(hit.Parent.Name.." Bool").Value = true
			end
			if v.Name == "Head" or v.Name == "Left Leg" or v.Name == "Left Arm" or v.Name == "Right Leg" or v.Name == "Right Arm" or v.Name == "Torso" and game.Lighting:FindFirstChild(hit.Parent.Name.." Bool").Value == true then
				v.Transparency = 1
			end
			if v.Name == "Head" then
				v.face:Destroy()
			end
		end
	end
end
------------------------------------------------
wait()
part3.Touched:Connect(Invisibility3) -- Invisibility