Hi. I have a small errata for the Butterfly mittens on the Butterfly Quilt and Butterfly Quilt 2 charts. The mittens will work out fine if you knit them exactly as in the pattern. But… technically, there should only be one plain row of knits on chart row 10 and one on chart row 20, not two plain rows together on chart rows 1o and 11. This will change the position of the top offset set of butterflies a tiny bit. But the full repeat is still 40 rnds, split into 2 sections of 10 rnds each.