I have a P3P with all the most recent firmware updates. I am experiencing random jittery shaky video results and I don't know why. ?? I checked all the screws, did gimbal calibration (which helped ) but still it's not as smooth as before. I have close to 50 flights with smoothest video rresults ever..now suddenly you can notice some jitters mostly on edges..gets much better after flying for about 5 mins...Does anyone have any idea what's going on..All my props are well balanced. Wind was mild..do I have to do gimbal calibration every flight, or IMU etc.. THanks