It looks like it's actually imported twice. Once as a figure (shown in the same dropdown as Genesis 8 Female), and the other as a prop (shown in the same dropdown as where the Ground is shown).

What happens if you try to delete the prop versions? (the ones that are not conformed to the figure)?

Oh wait. You did.  That's really odd. I can't help you much with this, though, because I haven't tried to use Genesis figures in Poser in ages. I'm sorry I can't help you further on this.