i have a P3A all current FW. When I yaw while in a hover I get a pretty severe drift. I have done IMU cal perfectly level, rc cal, changed props. When I first got my bird it would yaw as if turning on an axis, after doing my first IMU cal it yaws more like in a wide circle. I have done several calibration since to try and correct, but it still does it. It hasn't bothered me that much till I recently started to try the litchi pano mode, and it drifts so much I have trouble stitching the photos together. Below is a screen shot from healthy drones during pano mode were if you look at the home distance between each photo, it drifts about 50 ft So my question is could my IMU be unlevel inside the bird ? Should I send it in for repair, it's under warranty?