Thank goodness for the sharp eyes of Nora of noraknits who pointed out that the written instructions had a couple of things missing:
- Chart A, round 6: there should be a ‘p1’ before the final 9-stitch repeat
- Chart B, round 3-6: it should say ‘3 times’ after the second 9-stitch repeat.
Please note the charts themselves are correct, it’s just these two errors in the written instructions. The correct version is now uploaded both here and at Ravelry.