Hi all, New issue arose in past couple days, about 50 flights so far. No crashes and have hand caught all but twice. I am getting sporadic buzzing of gimbal. Almost as if it is stuck. Note, have flown with this and does not seem to cause issue with film quality or movement. Today, I tried to calibrate gimbal, t started to buzz again and gimbal calibration failed. I do have latest firmware..is that the issue? This started after 30 flights or so.