Why is the input for S and D not working?

So I have been working on the input for this character I am making and S and D don't seem to work when I press them but W and A do so Idk what's going on. Here's the code

RunService.Heartbeat:Connect(function(step)
	if CanMove2 == true then
		print(true)
		Tempman.Union.CFrame = Tempman.Union.CFrame * CFrame.new(0,0,0.5) --  This works fine
	end
end)
RunService.Heartbeat:Connect(function(step)
	if CanMove3 == true then
		Tempman.Union.CFrame = Tempman.Union.CFrame * CFrame.new(0.5,0,0) -- This works fine
	end
end)
RunService.Heartbeat:Connect(function(step)
	if CanMove4 == true then
		Tempman.Union.CFrame = Tempman.Union.CFrame * CFrame.new(0,0,-0.5) -- This doesn't work
	end
end)
RunService.Heartbeat:Connect(function(step)
	if CanMove5 == true then
		print("Should work")
		Tempman.Union.CFrame = Tempman.Union.CFrame * CFrame.new(-0.5,0,0) This doesn't work
	end
end)
Move.OnServerEvent:Connect(function(person, key, Value)-- Key detection for all players
	if Value == true and CanMove1 == true then
		if key == W then
			CanMove2 = true
			print("Should be true")
		elseif key == A then
			CanMove3 = true
		elseif key == S then
			print(S)
			print(key) -- S and key print out as the exact same thing here 
			local CanMove4 = true
		elseif key == D then
			local CanMove5 = true
			print(D)
		elseif key == Space then
			print(Space)
			local CanMove6 = true
		end -- change this when you're gonna do more keys
	elseif Value == false then
		if key == W then
			CanMove2 = false
		elseif key == A then
			CanMove3 = false
		elseif key == S then
			CanMove4 = false
		elseif key == D then
			CanMove5 = false
		
		end 
	end
end)