Last month I travelled to Spain and over there I calibrate the IMU, and everything went normal.
Then, I came back home and Last week I tried to fly my mavic, but it only allowed me to fly until 45 meter of distance and around 30 meters high.
So, only after calibrating the IMU again, I became able to fly without distance restrictions.
I Just wanted to share this, because I think it is a great safe feature that dji put on mavic pro.

Hi alexmbraMav, thank you for reaching DJI Forum. We do appreciate sharing your experience recently. Should you have any concerns, don't hesitate to reach us again. We're here to help you out. Thank you.