nparticle instancer geometry not rendering under batch render

[Anonymous]

Hi! Guys
Please Help!!

I used nparticle system to create an emitter then created an instancer with a simple polycube used as geometry .Everything worked fine  but when placing a final render using a batch render , it showed nothing except the cube used as an instancer geometry but instance cubes are rendering great in the renderview .I don;t understand why it is happening??? Please help

This is the render view sample image using Maya software


below is  the final batch render output