Additionally I cannot get Coupler or Hybrid to work properly. I can’t get a simple circuit power combining 2 of the Gain blocks with 2 Couplers or Hybrids to work properly.
They don’t work 100% in Qucs either. In the case of Qucs, ports are swapped in the Hybrid. I also get some odd data power combining 2 of the Gain blocks with the Coupler.