Errors that occur:

As you see I come into a couple of problems: Cageman on Newtek's forum was able to shed some light onto the situation.

Quote:Cageman

The IK-goal error is a typical one that happens when renaming objects that are already a part of an actor. MotionMixer gives a warning, telling you that it won't be sorted untill a scene-reload. So, a rule of thumb is to save the scene and reload it when changing names on objects part of an actor.

And

When using clones in Motion Mixer, you have to add the actuall parent object as well (in this case, the legs.lwo). Otherwise, on a scene-reload, Motion Mixer will get confused because it doesn't know which bone is part of which object. Notice that you get an (x) (where x = a number) when cloning an object. That number will help MotionMixer sort out which actor had which objects and bones (because the bonenames doesn't change). This is annoying, because it works very well when setting a scene up (that is, not adding the actual parent when using cloned objects), but once you reload a scene, there is a high risk in getting alot of funky stuff going on.

Thanks again Cageman.