I have a curve. I have done some calculations and made it in to multiple prims.Right now I have a set of primitives (some of them connected primitives and some of them not connected). I want to join all the connected primitives in to a single primitive.When I did that some of the primitives are disappearing.I found that the primitives are not in order and that is causing the problem.I tried to use the sort sop in order to make all the prims in order(number wise).But none of the options in sort sop resulting the same.Could any one please tell me how to go for it.

Have you tried the join sop with connect closest ends turned on?