Did anyone else have trouble on Lesson 81. Introduction To Empties? So far, this has been the most challenging of all sections for me.
Multiple Parenting and Empty’s/Null objects were hard to follow as the pace of the video went really fast towards the end, thankfully I hit rewind on video a few dozen times and pretty sure I solved the few issues I was getting with some of the parenting linkage breaking when duplicating the black pieces to make them into white pieces.
The relationship lines were a big mess so I had to undo many moves and start over again form the duplicating segment. 
