Render Point Particle from Multiverse problem!!!

[hung_hoangviet]

Hi guys,
I had big problem with my project. I had a point particle scene from Houdini and I exported them to alembic and USD. After that I loaded them by Multiverse 6.6 (vray 5 supported) and they showing up in maya. But when I add for them matterial as VrayMtl or VrayPointParticle , Lighting and hit render, vray not showing up anythings. How can I render this scene. Thank you so much.

[hung_hoangviet]

I've just loaded by vray proxy and same result as above.