The chart is correct but the first and last knit stitches shown are selvage stitches. They are mentioned in the “pattern notes section” but not labeled on the chart.
The chart keys are mislabeled. The top cable key is the TCF and the bottom is the TCB (They are correctly labeled in parenthesis underneath each key).
ALSO, the TCF stitch directions in the key, contains a typo that WILL result in an incorrect stitch count. Please refer to the directions under the “Stitch Pattern” for the correct directions.
Feel free to message me here with questions.