I tracked down the problem with the CocosStudio importer : it fails to import buttons with a custom font. And reseting the font in Cocos Studio is not enough, I had to manually remove the FontResource node from the .csd file.
I tracked down the problem with the CocosStudio importer : it fails to import buttons with a custom font. And reseting the font in Cocos Studio is not enough, I had to manually remove the FontResource node from the .csd file.