connecting spinner to spinner

helo everyone . before i try to make application when it select FST the 2nd spinner will show dks 1.1 and dks1.2 and if in spinner 2nd user select dks 1.1, 3rd spinner will show A,B,C(for example). i refer to this discussion How to connect spinner to spinner? but can somebody help me why is it when i select FEM nothing shows for 2nd spinner?
this is my block