I havent quite nailed down yet if it is the drone or gimbal, but one of the two likes to slowly rotate to the left. What I mean is, is when shooting timelapses or multiple minute shots, the shot slowly turns to the left probably 5-10 degrees. IMU calibration done, compass calibration done, gimbal calibration done, kind of stuck on what to do with this one?  

Hi Pina, may I know which drone do you use? What's the current aircraft, controller and APP version? Could you upload a short video for better assistance? Thanks in advance!