I found this to be a bit of a struggle. I was caught off guard with the cube and first arm disappearing when I started to add the second arm. Then I realized and hoped that it was caused by things being put into a Pose position. I located the objects a little ways away from where the were in pose mode but out of my view on the screen.
I still struggled to get the bones to work correctly when I added the new bone. I guess I didn’t assign things correctly and then found after watching the video that some of that was due to assigning both arms to the top arm by mistake. It sure is nice to know that mistakes are shown and what is done to correct the problem or to analyze the problem. I learned much more from those situations than just doing a copy this and set up that lecture that has no corrections in it. (I hoped that made sense. I appreciate mistakes because it shows me the process of working with or around them!)
