Osprey v22 42113 rotors problem

Hello guys, I built the Osprey V22, but my rotors are spinning in the opposite direction. I built the gearbox twice and also checked the whole mechanism. I know I could fix it by swapping the tooth gears in the engines or swapping the blades, but I want to know where the mistake is. Can anyone help, please? submitted by /u/matyas_kucera08 [link] [comments]