Mistakes & fixes

Edges or seams that stretch and lose their shape happen when fabric cut near the bias grain is handled without support. Stay-stitch bias edges promptly after cutting and avoid pulling the fabric while sewing.

Lumpy, hard-to-press seams at corners or curves come from leaving full seam allowance width in places that need to fold or turn. Trim, grade, and clip curves to reduce bulk before pressing.

Threads pulling loose around a cut buttonhole usually means the stitching was too loose, the fabric wasn't stabilized, or it was cut open before sewing finished. Interface the area and cut open last with sharp scissors.