Hi pilots. I just flew 2 batterypack with no problems. Then with the third battery I get IMU warning and message to calibrate IMU. Why does this happen right after 2 succesfull flights? I have never calibrated IMU but have never had any problems in flight. I find the IMU calibration a bit "scary" as the drone need to be cold, in level and also stressing because I have to hurry to start the calibration in the controller menu before the IMU gets to hot.