Maybe you could try running ExamDiff or something on your new pose, to compare it to an existing one and see what could be causing the trouble.  If it comes down to it, a script can be created to port your changes to an existing walk pose which does work.

Poser.  Gremlins.  :unsure:

===========================sigline======================================================

Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.