Hello guys.
I´m new to Houdini (MAX user). I´m a FX Artist and I´m having a beginner issue here. I tried to import a chair GEO as .obj from 3DS MAX (I attached all pieces together so that it´d be one piece of geo). I worked out how to do basic RBS sims in Houdini so I imported the chair, made it a RBD object and so far so good. When I try to simulate, the chair simulates all it´s individual pieces as if they were each one a RBD sim. What am I missing?

Thanks.