I don't usually use Gold to speed things along but figured Id test it and immediately it bugged out.
gyazo.com/cb328ee16968dbc394d5a7ea6e81382e
If there was no building to speed up then I wouldnt be clicking the button
gyazo.com/cb328ee16968dbc394d5a7ea6e81382e
If there was no building to speed up then I wouldnt be clicking the button