I think you may be misreading the directions, both text and chart. You said you sl 1, k1, then k2, mp... but the chart shows only k2, mp. So either the sl1, k1 is not on the chart and you need more sts to work with, or you're to begin every row with a slip 1, and the next would have to be k1 to match the chart's k2. And I still think mp is make purl, not pfb; that would match with putting the mp box over the no stitch on the previous row which is there when there isn't a stitch to begin with. For it to be pfb, it would show a stitch there.
I don't find any corrections to the pattern; perhaps you can contact the designer through IK, or she may have a website, and ask for clarification.