The first two complexes merged after adding an extra station to complex 1 (Now known as "iJS Complex Hub 002" - "iJS Complex Hub 001" is a self sustaining wheat/microchip complex is Presidents End). The third complex will not join no matter what! I've added new stations, as they were needed anyway, with no effect. As there are no station supply scripts I have no choice but to use complexes, but the complex construction is still the same mess from Reunion

The save file can be grabbed here.
Many thanks in advance.