Using cylindrical domain with terrain-missing wind directions

each time I’m trying to run cylindrical domain with 8 RANS wind direction the residual take or output 4 rans wind direction only (0,45,90,135) and totally ignore (180,225,270,315) and i can’t figure out why, can someone help me please ?


example-7.3dm (374.5 KB)
wind_processing.gh (334.5 KB)