Money data gets reseted in studio sometimes??

Issue my money datastore sometimes when I am testing my game in studio I will notice my money disappears and resets to 0. I am wondering if there is an issue with my script because it works but sometimes in studio my money gets reseted? Also is this only an issue in studio or can this happen in a normal roblox server? Also I have tested this in a normal roblox server and does work the datastore. Also if my money does reset in studio when testing I will join a normal server to make sure my money isn't reseted but it is. Script in serverscriptservice

local DSS = game:GetService("DataStoreService")
local DataStore = DSS:GetDataStore("MYData")



game.Players.PlayerAdded:Connect(function(player)
    local leaderstats = Instance.new("Folder")
    leaderstats.Name = "leaderstats"
    leaderstats.Parent = player

    local Money = Instance.new("IntValue")
    Money.Name = "Money"
    Money.Parent = leaderstats

    local data
    local success, errorMessage = pcall(function()
        data = DataStore:GetAsync(player.UserId)
    end)
    if success and data ~= nil then
        print("Data successfully loaded!")
        Money.Value = data.Money
    else
        warn(errorMessage)
    end
end)

game.Players.PlayerRemoving:Connect(function(player)
    local leaderstats = player.leaderstats
    local data = {
        Money = leaderstats.Money.Value;

    }
    local success, errorMessage = pcall(function()
        DataStore:SetAsync(player.UserId,data)
    end)
    if success then
        print("Data successfully saved!")
    else
        warn(errorMessage)
    end
end)