Sofistik reinforcement detailing - distribution problem

Hi,

I have problem with this option. I need to distribute this rebar through my element but everytime i tried, error has shown. Maybe this is because i created multilayer structural wall and every layer is divided so it is part, not element. Rebar which I want do distribute is hosted by layer of 5 cm. Cover is shown by green colour. I sketched rebar in revit rebar sketch option. I need to say, my distribution will not have same spacing, so I will select fixed number of rebar and after, achieve distance I want with move option