The OK hobby combo 2050KV and ESC 120A 2-4S are exactly the same as the ORION combo 2050KV and vortex8 ESC, which cost 3 times more ...
I have seen 3 Vortex8 in fire within 2 months, and I broke my orion 2050Kv 2 poles motor due to the hardwires and the widings, so attach them correctly !
At this time I didn't know nothing about 4 poles and NEU-Castle motors ^^ when I tried them it was just night and day
Shame on ORION to send this crappy combo (no power, limited to 4S, no reliable) more expansive than a Castle combo, and without customer support !!! "sorry we can't do anything, if you want we can sell you another combo for 250$ instead 320$." "No thanks, keep your ass oil" ...
I hope your 4 poles will work correctly !