Basically, I've had to alter the default SWBF2 skeleton to fit the a-pose which the JKA model is in. I've unkeyed all bones, sat them inside the model and when it's time to envelope, I end up with this unholy mess.
Can anybody point me in the right direction?
Edit: Solved by removing the override_texture and sv_ model, firstly by removing bone_root out from under the dummyroot heriarchy, deleting said instances, then moving bone_root back under the dummyroot