Rope collider stuck with other collider

I want to implement a rope behavior. I create a series of GameObject (piece) and I use line renderer to paint them. Each piece has his hinge joint to the previous one (using collide connected), the first is joint to the world. The rope works well, the problem comes when rope does some "aggressive" movements and then, some colliders invade the other collider space and it get stuck there. As my english is anything but good, I made a video to explain this: http://youtu.be/xaSwwZC6tVc