Is the green LED blinking? If yes, the Pitch Follow Function is on. From the manual:
Pitch Follow function allows the gimbal camera to track SteadyGrip in pitch
direction.
To Enter Pitch Follow:
Press Pitch Follow Button on the top of the SteadyGrip to enter Pitch
Follow Function. The green STEADYGRIP LED Status Indicator on top will
start blinking instead of being solid when enter Pitch Follow.
NOTE:
1) The default status of SteadyGrip is normal status without Pitch Follow.
2) When SteadyGrip is in Pitch Follow status, the gimbal camera tracks
SteadyGrip in pitch direction, and the gimbal pitch control roller wheel on
SteadyGrip is disabled.
To Exit Pitch Follow:
Press Pitch Follow Button to exit this function.