Wow, not sure exactly what you mean, but bummer!
In all the years I've had interchangeables I had the cable pull out of the join twice. I ordered a new one at Knitpicks which they promptly sent, but in the meantime I gave it to my DH and he fixed it with hot glue. You have to be really careful to not get enough that it goes over the edge and creates a snag on your cable. I'm not sure how he did it (I can ask), but it worked great both times. So I got the new cables and have the original ones as well.