How would I change the tables with datastore?

I am making a datastore that stores gems and dollars. When I run the script I get no error I only get "Success, the currency[1] is 56". It is meant to print the value but for some reason on line 23 and 24 the currency[1] and [2] don't change to the gems or dollars value that are in the game. It only saves when I change the values of currency[1] or [2] specifically with the exact number and no references.

local currency = {}
local dss = game:GetService("DataStoreService")
local currencyData = dss:GetDataStore("currency")
game:GetService("Players").PlayerAdded:Connect(function(plr)
    local leaderstats = Instance.new("Folder",plr)
    leaderstats.Name =  "leaderstats"

    local dollars = Instance.new("IntValue",leaderstats)
    dollars.Name = "Dollars"

    local gems = Instance.new("IntValue",leaderstats)
    gems.Name = "Gems"

    local success,err = pcall(function()
     currency = currencyData:GetAsync(plr.UserId.."-Currency") or {0,0}
    end)

    dollars.Value = currency[1]
    gems.Value = currency[2]
end)

game:GetService("Players").PlayerRemoving:Connect(function(plr) 
    currency[1] = plr.leaderstats.Dollars.Value
    currency[2] = plr.leaderstats.Gems.Value

    local success,err = pcall(function()
        currencyData:SetAsync(plr.UserId.."-Currency",currency)
    end)

    if success then
        print ("success, currency[1] is "..currency[1])
    end
end)