I've attempted to map my 230 acre property with my Mavic Air 2 several times, with no luck. I previously mapped a small area which only required one battery and everything worked perfectly, but if I have to change batteries, I have no luck. In one attempt, I was able to get the drone to return to the point it left off on the second battery, but on the third battery is flew off in the other direction way off my property and I finally had to tell it to return home. Every other attempt, once I swapped batteries it would head towards the point it left off and then fly around like it couldn't quite figure out where it was supposed to be. If I tried to maneuver it to the spot, then it would just hover. I was using this in the free trial with the intent of subscribing, but now I wonder if I shouldn't be looking for alternatives. Does the trial version have some limitation causing this? If not, what could be the cause?