If this figure uses an external Wavefront OBJ file, it could be a case of the famous corrupt RSR problem. If this is the case the figure will not be visible in the document window at all. When Poser reads an obj for the first time it creates a corresponding rsr file in the same Geometries folder as obj, problem is that it sometimes creates a corrupt rsr. The solution is to delete (or rename) the rsr and let Poser build a new one. This is the rsr in the Geometries folder NOT the one in the Libraries folder.