the green orange and blue lines are all the same node.
the long green link that you have made with your Y cable is logically the same as the short green line I have drawn.
you can see this now matches the links between each of all the other cells.
each cell "link" has 1 balance lead going to the JST connector.
in this case I have drawn it in orange.
the red balance lead (I have drawn in blue) is superfluous.
also by removing the red wire from you balance lead helps remove confusion about plugging which in where and generating shorts. the balance lead with the +ve red wire simply connects to the pack with the thick red charge wire.