The CW and CCW motors of the hexa drone have different rotational speeds.
What’s wrong (althold mode)
Symptom: When the throttle is raised from 30% to 50% after ARMING on the ground, cw maintains PWM about 1200, CCW maintains about 1200, and then suddenly rises to 1400.

Hello @111180

Different rotation or RCOU inputs between CW and CCW motors indicates that you have an imbalance between these motors, so probably one or more of your motors are misaligned or its mounting is loose. Double check this.