Thanks - I have reported it to DJI as it should still be under warranty so hopefully they can fix itMay be that the controller just needs the wheel replaced or just cleaned. I had one that the opposite wheel (right side) was very loose. Took it apart and reset the detent spring and solved that issue.
I had that issue just recently on a new mavic pro but it was the EV wheel stuck and it rendered my first ever drone flight footage useless as the saved video was all white haha Far out $1400 drone.only lightly but enough to stay down and continue moving the camera!