Nope, i was wrong. First material imports without problems. When i try to import second one (no matter which), Houdini crashes. So it works only for a first import in a scene. Checked a couple of times with different materials.
Yes, it works. Thank you! One feature request. Some materials in LiveDb have parameter naming. For example MBB_Quixel_PBR have names for maps (albedo etc). After import to Houdini it becomes a mess of nodes without proper naming. It would be great to inherit node names from LiveDB.