Am I correct in saying that you want the large box to be in the same position as the arrow mesh?
If so, making it a child won’t work as the entity that has the animated model doesn’t move, it’s the mesh that is moving.
What you can do is get the graphNode of the animated mesh in the entity ‘SK_Path’. If you look at the children of the entity ‘SK_Path’, you should seethe Box entity and graph nodes of the model.
On the post update, you can set the position of the Box entity to be the same as the animated graphNode.