Why can I still click an ImageButton when it is "ImageActivated"?

https://www.youtube.com/watch?v=xDRutOMUPj0&feature=youtu.be

up above is a video on what is happening

down below is a local script in an image button

local Button = script.Parent
local ImageActivated = "rbxassetid://5049442168"
local ImageNormal = "rbxassetid://4888438200"
Button.Image = ImageNormal
function OnButtonActivated()
	Button.Image = ImageActivated
 	script.Parent.Clickable = false
	delay(3, function()
		Button.Image = ImageNormal
	end)	
end

Button.MouseButton1Click:Connect(OnButtonActivated)

I do not understand why I can still click the ImageButton while it is on ImageActivated because of script.Parent.Clickable = false

I thought that line of code would make it so people could not click the image button when it was ImageActivated

Hi! So you are only setting the Button.Image to another URL. The way you would prevent a player from clicking the same TextButton again is by setting up something called a Debounce. Your "Clickable" property will not work (I have removed that line).

That can be found here: https://developer.roblox.com/en-us/articles/Debounce

However if I were to insert it into your code it would look like this:

local Button = script.Parent
local ImageActivated = "rbxassetid://5049442168"
local ImageNormal = "rbxassetid://4888438200"
Button.Image = ImageNormal

local debounce = true

function OnButtonActivated()
    if debounce then
        debounce = false
        Button.Image = ImageActivated
        delay(3, function()
            Button.Image = ImageNormal
            debounce = true
        end)
    end 
end

Button.MouseButton1Click:Connect(OnButtonActivated)

When you want to reactivate your TextButton you would simply set the debounce to true again (As shown on line 14). You have a delay() in yours that I assume turns the button back on.