Rnd 6: Ch 1 (bring ch up to height of a dc, does not count as a st, now and throughout), fpdc (see Stitches) around post of same dc (this is a ch-3), bpdc (see Stitches) around next dc, *[fpdc around next dc, bpdc around next dc] across until marked dc of next corner, 5 fpdc around next dc, move st marker to center fpdc of 5-fpdc group just made), rep from * 3 times, [fpdc around next dc, bpdc around next dc] across until first fpdc, join with sl st to top of first fpdc.
After doing the 5 fpdc in the corner, shouldn't the next stitch be a bpdc? The repeat starts with a fpdc.
ETA: After working this rnd, the pattern is correct as written originally. It just seemed like the next stitch should have been a bpdc.