I have a fitting that I'm modeling and am having troubleputting the threading on it. The fitting has a hex head along withtwo 1/2" NPT threads on both sides of the hex. I can get one threadto work without any real problems, but when I try to model thesecond, it won't work. SolidWorks will freeze up for severalminutes and when I finally can use the program again, it hasdeleted every feature in the region where I wanted to put thesecond thread. Any ideas?SolidworksParts And Features