Have you tried the suggestions I posted above?You write that "When the plugin moves the Poser frame from say frame 1 to 2, Poser is not applying the joint control morph to the figures vertices."
But when the plugin moves the Poser frame from say frame 1 to 2, in octane window "View port" all ok
But when the plugin moves the Poser frame from say frame 1 to 2, in octane window "Animation" happening problem. When this happens the Poser preview window also showing these)
In oldest version plugin, trouble to bee in both cases!
You could fix half by programming.
Now we need to do to something, to that works in the window "View port", worked in Animation" window
Paul