Hey all,

I’ve got a custom constraints question. 

In my constraint, the user drags in two models (a source and target) from which I explore the hierarchy and make all the connections in SetupAllAnimationNodes.

That works fine when creating the constraint, but the problem lies when a user saves out an FBX file with the constraint active and then later reloads that FBX file.  Upon load, the SetupAllAnimationNodes function in my constraint is called, but the two models it uses do not yet have their children set up. 

Is there a way I can have SetupAllAnimationNodes called on my open where the model hierarchy would already be set up when doing an FBX open in MotionBuilder.

(hope this makes sense ;))

Appreciate any response,
Steve