Welcome to the forum from Chicago the Windy City.
Check out Mavic Help and Mavic tips, Prevent Flyaways is a good subject.
It will help you understand the causes of flyaways.Because drones just don't flyaway. Poor understanding Of RTH, and how the drone is programmed, and how to use it. Especially, if you fly beyond VLOS, and rely on RTH to bring the Bird home. If your planning on flying based on camera and maps,
practice, and more practice. Open field, no wires, no people, no houses, no trees, no Cars. Don't try flying beyond visual line of sight,. that thing is so small it's difficult to see it, will happen real quick losing sight of the drone.