All of the other materials that I have placed on different furniture pieces, including the Womb Settee are appearing however the materials I have added to the Womb Chair are not. They show up in the family and in my revit project but not in enscape, why might this be happening?
@aluzenske , thanks a lot for your inquiry. 
Any chance you’re making use of procedural textures for this particular object?
Procedural textures, as provided by Revit, are not currently supported by Enscape. Any textures you’d like to see in Enscape have to be fed in as image files.
Although we’d love to include the ability to interpret Revit’s procedural textures to Enscape, unfortunately this won’t be possible in the near future.
If you are not making use of these, could you kindly provide me with a test scene which includes the object plus material, and/or a few screenshots showing the material in the appearance tab for me to check out?