Path Tracer: Volume Material Domain

Do we know when materials that use the Volume domain will be renderable in Path Tracer? No luck here trying to render them. Interestingly, if the material is marked for use with a Volumetric Cloud it does render, but at like 1/5th the fidelity of how it looks in Lumen. The new Local Height Fog actors also do not render with the Path Tracer. I only ask because according to the Path Tracer docs everything that works with RT should work with Path Tracer so maybe I’m missing something?