Usually when I use anything but Blacksmith3D for morphs, I import the WHOLE obj, then DELETE all other parts than the group I want to morph. That way I'm sure it is not moved or anything.

Many programs reorder the vertices compared to Poser's way.Some must have them reordered on import, others on export. And some doesn't mess them up. Hexagon is not messing them agout IIRC. 

FREEBIES! | My Gallery | My Store | My FB | Tumblr |
You just can't put the words "Poserites" and "happy" in the same sentence - didn't you know that? LaurieA
  Using Poser since 2002. Currently at Version 11.1 - Win 10.