Obby: Change team only one time ?

Hello, I'm building an Obby right now and I needed a script to make a spawn change team only one time. Exemple: I succeeded the stage 1 and stepped on the checkpoint(spawn) of the stage 2 and if I try to comeback to the checkpoint of stage 1, I'll not change team because I already passed this stage earlier.

Someone gave me a script for this (Thanks to chimmihc) but there are some problems. When I'm in the spawn of the stage 1 and I go to the spawn of the stage 2 and I die, I'll spawn to the spawn of the stage 3. EDIT: I resolved the problem that I put in bold. I need to give every spawn's name a different one but this script don't match with what I want because I can comeback to every spawn that I passed.

Another thing, the script save the last spawn before I disconnected and I don't want it :( . I want when someone disconnect it reset all his progression in the Obby.

Here's the script I put in ServerScriptService :

 local saves = true -- Does it save what level they are on? If so when they join the game they go to their last level.
local playerDeadTime = 0.1 -- How long after dying players spawn





local datastore = game:GetService("DataStoreService"):GetDataStore("Stats")
game.Players.CharacterAutoLoads = false

game.Players.PlayerAdded:connect(function(player)
	local level = Instance.new("StringValue",player)
	if saves then
		local stored = datastore:GetAsync(player.userId)
		print(stored)
		if stored ~= nil then
			level.Value = stored
		else
			level.Value = "Start"
		end
	else
		level.Value = "Start"
	end
	level.Name = "SpawnLevel"
	player.CharacterAdded:connect(function(char)
		wait()
		char:MoveTo(workspace:FindFirstChild("Spawn"..level.Value,true) ~= nil and workspace:FindFirstChild("Spawn"..level.Value,true).Position  + Vector3.new(0,3,0) or Vector3.new(0,100,0))
		char:WaitForChild("Humanoid").Died:connect(function()
			delay(playerDeadTime,function() player:LoadCharacter() end)
		end)
	end)
	wait(2)
	player:LoadCharacter()
end)

game.Players.PlayerRemoving:connect(function(player)
	local level = player:FindFirstChild("SpawnLevel")
	if level then
		if saves then
			if datastore:GetAsync(player.userId) ~= nil then
				datastore:UpdateAsync(player.userId,function(old) return level.Value end)
			else
				datastore:SetAsync(player.userId,level.Value)
			end
		end
	end
end)

local function spawns()
	curse = function(p)
		for _,v in next, p:GetChildren() do
			if v:IsA("BasePart") then
				if v.Name:sub(1,5) == "Spawn" then
					v.Touched:connect(function(hit)
						if hit and hit.Parent then
							local human = hit.Parent:FindFirstChild("Humanoid")
							if human then
								if human.Health > 0 then
									local player = game.Players:GetPlayerFromCharacter(hit.Parent)
									if player then
										local level = player:FindFirstChild("SpawnLevel")
										if level then
											level.Value = v.Name:sub(6)
										end
									end
								end
							end
						end
					end)
				end
			end
			curse(v)
		end
	end
	curse(workspace)
end

spawns()

game.OnClose = function()
	wait(3)
end

Thanks in advance !

This is a part-answer, you said you didn't want their progress to save when they disconnect, the first line of the script says this:

local saves = true -- Does it save what level they are on? If so when they join the game they go to their last level.

Have you tried putting that to false?

Problem resolved

If someone wanna know my code:

Team1 = "Team Color Here"
Team2 = "Team Color Here"
    
script.Parent.Touched:connect(function(hit)
    if hit.Parent:FindFirstChild("Humanoid") then
     local Player = game.Players:GetPlayerFromCharacter(hit.Parent)
    if Player.TeamColor == BrickColor.new(Team1) then --If you're in this team, he detect you
     Player.TeamColor = BrickColor.new(Team2) --To change your team in this team
      end
   end
end)

You need also to place a transparent part that you uncheck CanCollide on the SpawnLocation with the same scale (Uncheck AllowTeamChangeOnTouch also)

Put the script in that transparent part.