Houdini Titan Building Generator Tool to Unreal

I’m not sure if this is the right place to ask, but I’ve been working through the Houdini Project Titan Building Tool videos and got stuck trying to get the tool working in Unreal.

The video in question:

I got the plugin all hooked up and running and attached the building generator to a cube in engine, but the tool itself in Unreal only shows a white cube still. The actual geometry from Houdini that worked in my Houdini project isn’t transferring over.

Any ideas what I’m doing wrong?