Table data is not saved with DataStore2 randomly, even though "confirmation" with prints says it is saved every time

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#1

Last year I got into roblox development and I decided to start learning with something relatively easy, a Tycoon. As I started to make more complex things, I also wanted to implement a saving method for my game(s), and I stumpled upon a very useful module: DataStore2.

Everything is saved without problem: cash, rebirths and a whole range of different stats. (but they are single values)

The problem seems to have appeared when I tried to save an array/table. I get confirmation that the tycoon is saved, but when the loading process is happening, the array does not contain the same items that it stated it saved.

Here is where a player buys something:

function Purchase(tbl)
		local userTycoon = DataStore2("Tycoon", player):Get({}) -the array
		local cost = tbl[1]
		local item = tbl[2]
		local stats = tbl[3]
		if not script.Parent.PurchasedObjects:FindFirstChild(item.Object.Value) then
			stats.Value = stats.Value - cost
		end
	Objects[item.Object.Value].Parent = script.Parent.PurchasedObjects -- "item.Object.Value" represents the model name that the button refers to
	if not (table.find(userTycoon, item.Object.Value)) then 
		table.insert(userTycoon,item.Object.Value) -- insert the name of the bought model into the array
		DataStore2("Tycoon", player):Set(userTycoon) -- save
		print("Added "..item.Object.Value) -- confirm the saving
	end
end

And everytime the print works, which leads me to believe that the insertion into the array works.

However, this function is called when a player claims a new tycoon:

local isLoading = false -- variable used so that certain functions won't work when the tycoon is in the saving process
script.Parent.Load.Event:Connect(function(sentPlayer)
	if sentPlayer == player then
		isLoading = true
		print("Loading the tycoon")
		local userTycoon = DataStore2("Tycoon",sentPlayer):Get({})
		local Buttons = script.Parent.Buttons
		if userTycoon ~= nil then
			for i,v in pairs(userTycoon) do
				print("Contain: "..userTycoon[i]) -showing the array with the saved items names
			end
			for i, v in pairs(userTycoon) do
				for _, x in pairs(Buttons:GetChildren()) do						
					if x.Object.Value == v and not script.Parent.PurchasedObjects:FindFirstChild(v) then
						Purchase({[1] = 0, [2]=x, [3] = game.ServerStorage.PlayerMoney:FindFirstChild(sentPlayer.Name)})
						print("Loaded "..x.Object.Value)
						x.Head.Transparency = 1 -- clear buttons
						x.Head.CanCollide = false
					end
				end
			end
		end
		isLoading = false
	else
		return
	end
end)

But here it seems that, when I check what values does the saved array contains, some data is not shown.

An example where an item is confirmed to be saved (BioWall4), but is not present in the saved array:
image

image

In some post regarding something the same about table saving, it was said to use “GetTable()”, but it was stated that there is no difference and you can safely use “Get({})”.

Any idea what the problem might be?