Yes, I am aware of that. In the video I played the enclosure to the initial “3” on the 1st string. This took me temporarily outside of the range established for pattern 1 when playing the “4” or upper enclosure note. In the pdf which is part of the book, I kept everything strictly within the confines of the Pattern 1 range and for that reason did not assign an enclosure to the initial “3”.
I wasn’t necessarily looking at the book when I played the first exercise or several others, for that matter. I didn’t feel it would be worth the time to go back and redo the whole video, due to this. It isn’t necessarily “wrong”, just an expanded version of what’s in the PDF. Sorry if this confused you!