New Parallax Occlusion Mapping Node Problems

Does anyone know how shadows work with the new node? I know you have to enable them with a Boolean value, but how do you get them to appear on the actual material? Multiplying the shadow output by the BaseColor just results in a black material.

You need to supply a vector for your main light source. I did this by having a blueprint set a vector variable to the light source vector on starting the level and feeding this into the POM node.