Town Hall Upgrade Costs Nothing?

[Zoldam]

In my map upgrading the town hall (Then later castle) is free, even though in the editor it's not supposed to be. It's supposed to cost 3000G and 2000L (Wanted major upgrades to take some dedication), yet in-game it's free. I am not sure what is causing this, does anyone have any idea what the cause might be?

 

[Arrr]

have you touched the gameplay costants? I think it may have to do with the value gameplay - use relative research costs, or something similar