Objects joined with ropes

[wifor]

I have 4 objects placed in a row and joined together with rope, obi rope, using "Pin Constraints". All ropes are exactly the same but only one works correctly. That is, if I throw the two objects that are hooked to the running rope, drag the rest of objects, but if I throw the others the rope will stretch and never move the other objects. How can I do for all objects to be dragged away?