When you spend golden balls on quick training, the total of gold balls doesn't decrease in the UI. It only shows the new value after you try to train again and the "You don't have enough golden balls" dialogue is thrown.
This happens when playing via Facebook using Chrome on Windows. I would try to reproduce this defect on other platforms for you too, but I lack balls...
This happens when playing via Facebook using Chrome on Windows. I would try to reproduce this defect on other platforms for you too, but I lack balls...