bone deform in ani pro 3

how can I save a character with bone deform ,to my library.
I have been trying but it dosent shown up in the thumbnails nor will it generate one.
I’m using ani pro 3
I’m using the network , group module, and then added a multi out module, then copy and paste to new folder in library.
It wont generate a thumbnail ,in library view.
what am I doing wrong. or is it a nother way to save a character with bone deform,pegs on each layer, and a master peg ?