Yeah, I' think it might be more of Poser problem then a V4 problem.  Here's why I think that.  After I purchased Poser 6, I had the strangest problem with some of my pose injections with V3, Aiko and M3.

I would set up my character, conform some clothes, then inject a partial pose  (you know, from one of those pose sets that let you choose poses for arms, legs and such separately.)

Anyway, when I injected the pose, the character would strike the pose, but oftent he clothing would not, or even worse, the clothing would just go into seemingly random places.

What I found (wierdly enough) was that if I chose to 'undo', then 'redo', that the whole thing worked fine.  A real pain in Poser 6 because you only had one undo, so  Camera move or anything else, and I was screwed.

I have still had this problem intermittenedly with Poser 7, but the Undo, then Redo thing completely seems to work.

I've never had this problem with any non-Daz figs.

Anyway, Tygus, could you give that a try and tell us your results?  I'm betting you're running into the same bug, just expressed in a different way.

Good luck.