Anyone else having an issue with assigning materials via the material SOP with Houdini 17.5 and Renderman 23?

I can assign materials at object level but anything I assign with the material sop is ignored and I get a grey mesh!

Also trying to render older Renderman scenes (22) with Rman 23 yields some really strange results!

Try dropping an AssignMaterial node after the MaterialLibrary. Make sure to click the AutoPopulate button on the material Library. This will make your materials appear in the USD Scene Graph. From there you can drag/drop your mesh and materials onto the AssignMaterials node.

Thanks! I'll have a look when I'm back at my computer.

Are you using 17.5 or 18? I'm still on 17.5. The Pixar docs say they support 17.5 still but I wonder if that's accurate.