I am new to loom knitting. I realized after I finished my project -- a baby blanket gift for my friend -- that the yarn had a color defect and there is one stitch that shows as black instead of light blue. It may seem like a small glitch but it sticks out like a sore thumb, and since this is a gift, I want it to be as perfect as possible. Is there anyway to fix this? I'm at a complete loss.