During 3rd mission gold campain (gold colossus and 1 milion gold forge)

when you click on forge once you reached 1milion gold before game tells you to do so , will bug game out , spawning colossus every time you click (screen fades for cutscene who instantly disapears back to game), and make you unable to finish map , i had to relode save from 1 hour ago and do it all over again