Okay, it's irritating, but it can be taken care of with postwork.  Until you want to try using subdivision.  What happens then is something that would be a lot harder to do anything with. 

Loading her hand into Wings, at first the problem isn't too easy to see, but move in close and there are a pair of triangles, base to base.  Harder to describe how it looks, but the base of the triangles is the root of the problem, there are two edges that are not joined.  There is also, when you look at it, a vertex that seems to have no function, although that vertex is not the problem,it's raised a litttle above the rest of the mesh, with edges going to two other vertex.

Deleting that vertex, no, it has to stay, period, unless you want to get into more work that you don't have to do.  Deleting the unconnected edges, and doing nothing else, the bad faces snap together.  Export back into Poser, do a render, the bad spot is gone.

NOw, the question is, once I have that done, how do I replace the bad hand with the repair job?  Or, do I have to find the whole Katie mesh and work on that, then replace the original?  I'd like to see it fixed, I do use Kate in more than an occasional render, get away from the crotch crunch when she bends and she'd be a nice little figure.  OR as I do, put clothes on her and don't bend her that far.  Weight mapping, the "one click" method, improves some of the bending, I'd like to see what it would look like with her smoothed with subdivision, then go to work on her face a little.  But, until I can figure out how to fix her hand, subd is out.

Doric

The "I" in Doric is Silent.