I am having an issue with my piping insulation showing in simulate 2013. Insulation shows up fine in Plant3d 2013 when insulation is toggled on. If I toggle insulation on in Plant3d and save, when I open the dwg in Simulate the insulation is not shown everything elase in the model is fine just no insulation. I have tried many times and deleted all nwc files just in case. It use to show insuation fine. Anyone have any ideas?