front panel calls a subvi that calls other subvi's

Hello,

I'm having a problem calling a subvi from the main front panel, where that subvi calls other two subvi's. My two last subvi's in the hierarchy have references in order to see the outputs on the front panel of the subvi. While from the subvi references work and I can see the output, when I try to reference the references from the subvi I can't see the output on the main front panel.

I know how to reference objects but do I miss something? Thanks