Tutorial1 (https://github.com/PushyPixels/CookingWithVR/wiki/Tutorial1) says you can put hands under head as your video shows that doesn't work. I'd suggest removing that line or suggesting putting them all under and empty game object. I believe it fails because it sets the postion already for the head, then it's trying to set the position for the hands and probably has issue because it become relative to the head instead of the world.
Tutorial1 (https://github.com/PushyPixels/CookingWithVR/wiki/Tutorial1) says you can put hands under head as your video shows that doesn't work. I'd suggest removing that line or suggesting putting them all under and empty game object. I believe it fails because it sets the postion already for the head, then it's trying to set the position for the hands and probably has issue because it become relative to the head instead of the world.