For the life of me, I couldn't get past row 17 of the chart. It was always 1 stitch off. I decided to count between the markers, and I found that in 1 section there were 59 instead of 60 stitches. Then a lightbulb went off. I realized I missed a yarn-over in the middle of the chart on row 15. Word to the wise. Don't knit lace when you are sleepy.
After that, I completed the upper back portion, and I'm currently working on the lower back portion. This join will encompass the right side of the sweater. Can you visualize it? Because I don't see it yet. But, I'm trusting the instructions and following word for word.
I also found a new coffee to keep me awake. Jamaica Me Crazy. Hehe! That's how I felt on row 17.