USD - 3DS Max MaterialX export

Hello everyone!
I have a question regarding the USD workflow: I’m trying to export the physical material from 3DS Max as the MaterialX. I’m using OSL materialX maps piped in Base color and Displacement slots.I’ve exported that material with MaterialX Import/Export tool, assigned back to my object and exported the USD. But I can’t get the displacement at all. I’ve loaded the USD in Houdini, and no displacement is visible. I’ve tried to load the USD back in the 3DS Max but same happens.

Do you guys have any idea how to solve this issue. Is there any specific OSL map that should be used?

Thank you all in advance!