The outputs of the components you are using (FacesbyType and FacesbyBC) are LBT objects that can not be previewed with GH’s preview component. For that you need to add the HB_VisualizeAll (or any other of the Visualize HB components).
You can use the HB_VisualizebyType component which outputs are GH meshes which can be connected to the GH preview, lke so:
-A.