Back to the Jones plugs...if two were swapped into the wrong places is the easiest answer to the problem. Check the wiring colors at the Jones plugs - only takes a few seconds.
THE WIRE COLOR GOING IN SHOULD BE THE SAME AS THE COLOR GOING OUT...if a blue/green (for example) wire goes in on the male plug, does a blue/green come out on the female side? Check a few. If not, does the right pattern exist on another plug?