I have problem with navigation between ViewControllers:

here is my storyboard: http://postimg.org/image/dar9pkuvl/

The navigation between controllers in green rectangle works fine, I add to controller number 1 controller number 2 (by addtosubview) and then controllers number 3,4,5 to UIScrollView in controller number 2 ( controller number 2 contain scrollview). Everything work fine but if I click Send buttn on controller 4 nothing happens (It is strange because I was added connection between button and controller in the same way like between controllers 7 and 8).

I know it is little bit confusing described, but I hope that someone tell me where is problem. Thanks