halyard twist

Yesterday, during a brief time of having a hint of wind, we tried to raise the code zero but experienced the halyard twist problem once again. We fought with it over several hours but we're never successful in getting it hoisted. We later theorized what could be causing this problem in such a simple system. The best guess of the problem as it currently exists is that the rope as an axial twist in it, i.e. The core of the rope has a twist in relation to the cover. So a portion of the rope wants to twist back on itself similar to what would happen to a long spring if you were to twist one end while holding the other stationary. It's quite perplexing. The other question is how that twist got there in the first place. We have a couple theories on that also but first I need to replace the damaged halyard (once again).