Could it be that there is some misunderstanding about what in "bone" in poser is? In some other 3d-applications e.g. blender, a bone is displayed as a kind of octahedron, connecting the parent bone and the child-bone. It serves as a visual aid and at the same time it defines the deformation of the mesh. When you enter e.g. Poser2010's setup room and use the bone creation tool, you get those things that look like long pyramids that might easily be taken for "bones", but they are not. Instead look at the green axis cross, that is what should be called a bone. The long triangle things are only a visual aid, but may or may not point to their child-bones, with seemingly no functional impact. For multiple child bones, they usually point to the first child bone, but it is the origin (the green axis-cross) that counts.