Board Thread:Quests and Special Events/@comment-17714236-20130905040913

So I've got the dragon in my storage... I go to 'use' it... And a message pops up. It says 'you cannot add more buildings of this kind'. I've checked my hatchery, it has a free space. I've checked the terra habitats I have, there is a free space. I am so confused and any insight into what I'm doing wrong would be much appreciated. Thank you in advance. 