That's why I was asking if you exported it to another program, then imported it back in. Some programs, like Blender will shift around the vertex order, not to be confused with count. Vertex order will tell you the position of a vertex. Vertex count will tell you the number of vertices. These are NOT the same thing and why your model looks the same on import than it does on export. I know that sounds confusing, but think of it like this: You have a square. You export it. The program you export it to may turn the model upside down, then you export it back, your model is still upside down, but it's a square, so you can't tell that and don't know. It looks the same. But Poser knows, because the vertices that used to be on the top are now on the bottom, so the order is not right.