PX4 1.9.2 with pmw3901

What’s the direction of the pmw3901?
Reference to the datasheet and px4flow guidance document ,the y direction of pmw3901 module is consistent with the flight control body,but it’s no use,the drone crashed every time…

Make sure you have the SENS_FLOW_ROT parameter set to 0 if you have the arrow on the PMW board pointing forward.