I edited a boot in Blender using Blender Pipeline to fit a character. I brought the boots back into CC4 as an accessory and then transferred skin weight for shoes. I then brought in the textures maps for the pbr material. It appears that CC4 is not seeing the maps as the boots do not show the PBR material in the viewport. Two screenshots show what I am seeing in the blender and CC4.
It would be helpful to show a screenshot of the texture channels for the boots in CC. For example, is there a Roughness map?