Cannot create more than one button with id

So I’m making a plugin like I’ve done many times before, and get this error when replacing it as a local plugin. I have to manually reload the plugin in the debugger service now.

It’s just inconvenient and there’s no reason for this to be happening.

local plugin:Plugin = plugin
local Toolbar:PluginToolbar = plugin:CreateToolbar("RSUITools")

local UIS = game:GetService("UserInputService")

MakeButton("FreeAlign", "rbxassetid://11714865600", "Toggle free align", function()
	-- stuff
end)

I use UserInputService and plugin:GetMouse().

I have tried removing plugin getmouse but that had no affect and this error is still persisting.