Hotkey Issue For Upgrade Button

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#1

What am I attempting to achieve?
I am attempting to make a consistently functioning upgrade button. The upgrades can be purchased by right clicking, or a hotkey.

What is the Issue?
My issue is that the hotkey will sometimes not work(half the time?) when trying to upgrade, however, using right click will always work, as shown in the GIF.

Upgrade Script 
 function onKeyPress(inputObject, gameProcessedEvent)
if debounce == false and teamName == "Green" and inputObject.KeyCode == Enum.KeyCode.Two and script.Parent.Parent.Parent.Enabled == true and RedUpgrades:FindFirstChild(UpgradeType).Value < 3 and Cost.Value <= Cash.Value then
	debounce = true
	GreenUpgradeEvent:FireServer(Cost.Value,UpgradeType)
	print("eh??")
	if GreenUpgrades:FindFirstChild(UpgradeType).Value == 0 then
			Cost.Value = 185
		elseif GreenUpgrades:FindFirstChild(UpgradeType).Value == 1 then
			Cost.Value = 270
		elseif GreenUpgrades:FindFirstChild(UpgradeType).Value == 2 then
			Cost.Value = 0
	end
	wait(.7)
	debounce = false
elseif debounce == false and teamName == "Red" and inputObject.KeyCode == Enum.KeyCode.Two and script.Parent.Parent.Parent.Enabled == true and RedUpgrades:FindFirstChild(UpgradeType).Value < 3 and Cost.Value <= Cash.Value then
	debounce = true
	RedUpgradeEvent:FireServer(Cost.Value,UpgradeType)
	print("eh??")
	if RedUpgrades:FindFirstChild(UpgradeType).Value == 0 then
			Cost.Value = 185
		elseif RedUpgrades:FindFirstChild(UpgradeType).Value == 1 then
			Cost.Value = 310
		elseif RedUpgrades:FindFirstChild(UpgradeType).Value == 2 then
			Cost.Value = 0
	end
	wait(.7)
	debounce = false    
end
end

game:GetService("UserInputService").InputBegan:connect(onKeyPress)
GIF and GUI Hierarchy

Before I moved my mouse over and clicked, I used the hotkey several times, however the upgrade did not change until I right clicked.
Gyazo GIF

Upgrade ButtonHierarchy:
GUI

What solutions have I tried so far?
I tried using the output to see if there errors, and seeing if anything was weird with my variables, however I could find anything that pointed to a solution to the issue.

I apologize if my script is poorly made, please criticize if necessary. Any advice would be very helpful. Also, if I left anything out in this post, please let me know.

Thanks!

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