Right, so ... I can't build anything from the second tab. When I switch to it, it shows the names of the buildings and their costs but trying to build anything actually builds buildings from the first tab. Considering that steel is a required material and you can't get it without building the second-tab buildings, this is kind of game-breaking.
 "Idling to Rule the Gods"){kind=icon}
 "Heart of Galaxy Beta"){kind=icon}
 "Bloons Monkey City"){kind=icon}