I made a French braid - California king size, with 7 braids. I did not have any twisting problem. I started with a triangle from a 12" square, and used 8" lengths the fabric for the braids from a jelly roll. I did not have any bias edges that way and I trimmed the top and bottom square. I also placed sashing between the braids (needed the additional width) and trimmed off the points. Send me a PM and I can explain more if you don't understand what I am saying. That being said, though, I do not know how you can fix what you have, as mine was done differently from the beginning.