Here's Antonia 1.2 obj straight from Geometries in Mudbox with an aggressive smooth applied. Also notable that the 1.2 obj throws no mesh error warnings upon import... which is actually a rare thing for a Poser figure mesh. Most Poser figures throw at least a high valence vertex warning, not so with 1.2

Here's the 1.3 obj import. It now throws an incomplete UV set warning. Not sure why this is, it won't effect my usage but I figured I'd point it out.

Here's an aggressive smooth applied...

Being that I use PML this won't effect me at all but as I said it's non standard to have an unwelded mesh in a distribution.