My Map Datastore Isn't Saving?

So, I have been making some progress on a new game I'm making, but when I tried making a datastore to save a value that determines whether the player has bought a map, it does not save.

To determine if the player has bought a map, I use BoolValues that save through a Datastore. If the value is false, then the player doesn't have it. If the value is True, the player does have it. But, every time I and my Testers play the game, the datastore never saves and the game makes us purchase the Map again with In-Game currency. This is very frustrating and I am trying to find a way to fix this.

All the BoolValues to save the Maps are located in the ReplicatedStorage

Here is my Datastore Script:

local mds = game:GetService("DataStoreService"):GetDataStore("MapDataStore1")
local rs = game:GetService("ReplicatedStorage")

game.Players.PlayerAdded:Connect(function(plr)
    wait()
    local key = "user_"..plr.UserId

    local mapsave1 = rs.PurchaseSaves.Map2Purchased

    local mapsGetSaved = mds:GetAsync(key)
    if mapsGetSaved then
        mapsave1.Value = mapsGetSaved[1]
    else
        local MapsForSave = {mapsave1.Value}

        mds:GetAsync(key, MapsForSave)
    end
end)

game.Players.PlayerAdded:Connect(function(player)
    local mapsave1 = rs.PurchaseSaves.Map2Purchased

    mds:SetAsync("user_"..player.UserId, {mapsave1.Value})
end)

When I Test and Play the game, it never shows any errors. Any help?