I've run into this issue as well with the V4 and M4 figures. It's caused by the fact that the default V4/M4 rigs have a bend automatically set to load as part of the default cr2 pose. When you clone the skeleton it also clones that set -20/+20 bend in the parent figure, and when you conform your item it applies that default bend twice... once for the main figure and a second time on the conformed item which causes poser to think you've manually posed the legs of the conformer away from the parent figure (causes the same effect as though you'd gone into the parameters for the conforming item and changed the posing of it manually only it's being done automatically when Poser conforms the item).

You'd find that the conformer would work just fine without that issue when used in DAZ Studio, It's an issue caused by the way DAZ rigged the figures and the way that Poser handles conforming items...

The only solution I've found for this is to go through the CR2 line by line  and edit it manually (in a text editor) to eliminate those preset bend values...