Is there a limit to how much a datastore can save?

So I'm trying to save at least 4 value/ leaderstats in my game, but I found out that when I played, it only saves the first 2 stats, the other 2 stats didn't save.

Script:

local DSService = game:GetService("DataStoreService"):GetDataStore("Stage4")

game.Players.PlayerAdded:connect(function(plr)
	-- Define variables
	local uniquekey = 'id-'..plr.userId
	
	local leaderstats = Instance.new('IntValue', plr)
	leaderstats.Name = "leaderstats"
	
	local Stage =  Instance.new('IntValue',leaderstats)
	Stage.Name = "Stage"
	Stage.Value = 0
	
	local Gems = Instance.new("NumberValue",leaderstats)
	Gems.Name = "Gems"
	Gems.Value = 0
	
	local Skip = Instance.new("NumberValue",plr)
	Skip.Name = "Skip"
	Skip.Value = 0
	
	local StageSkipped = Instance.new("NumberValue",leaderstats)
	StageSkipped.Name = "StageSkipped"
	StageSkipped.Value = 0
	
	-- GetAsync
	local GetSaved = DSService:GetAsync(uniquekey)
	if GetSaved then
		Stage.Value = GetSaved[1]
		Gems.Value = GetSaved[2]
		StageSkipped.Value = GetSaved[3]
	else
		local NumbersForSaving = {Stage.Value, Gems.Value, StageSkipped.Value, Skip.Value}
		DSService:SetAsync(uniquekey, NumbersForSaving)
	end
end)


game.Players.PlayerRemoving:connect(function(plr)
	local uniquekey = 'id-'..plr.userId
	local Savetable = {plr.leaderstats.Stage.Value, plr.leaderstats.Gems.Value, plr.leaderstats.StageSkipped.Value, plr.Skip.Value}
	DSService:SetAsync(uniquekey, Savetable)	
end)

I don't think there is anything wrong with it, just that it wouldn't save the last 2 values/stats. Any help would be appreciated. Thanks!