why is only 1 of these developer products working at a time?

local Marketplace = game:GetService("MarketplaceService")
local developerid = 47147513
local crate = game.ReplicatedStorage:FindFirstChild("CashBox")

Marketplace.ProcessReceipt = function(receiptInfo)
    for i, player in ipairs (game.Players:GetChildren()) do
        if player.userId == receiptInfo.PlayerId then
            if receiptInfo.ProductId == developerid then
                if player.PlayerGui:FindFirstChild("CashBox") == nil then
                    if crate ~= nil then
                        crate:Clone().Parent = player.PlayerGui
                    end
                end
            end
        end
    end
    return Enum.ProductPurchaseDecision.PurchaseGranted
end

local Marketplace = game:GetService("MarketplaceService")
local developerid = 46742331
local crate = game.ReplicatedStorage:FindFirstChild("GearBox")

Marketplace.ProcessReceipt = function(receiptInfo)
    for i, player in ipairs (game.Players:GetChildren()) do
        if player.userId == receiptInfo.PlayerId then
            if receiptInfo.ProductId == developerid then
                if player.PlayerGui:FindFirstChild("GearBox") == nil then
                    if crate ~= nil then
                        crate:Clone().Parent = player.PlayerGui
                    end
                end
            end
        end
    end
    return Enum.ProductPurchaseDecision.PurchaseGranted
end

they are in their own separate scripts but when i play the game and go buy the developer product only 1 of the developer product will work. the developer product that i buy first works the other does not. why? please help.

basically if i buy the gearbox developer product first that will work but the cash developer product will not but if i rejoin the game and buy the cash developer product first the gear developer product will not work.