I uploaded to phantom 3 advanced a grid. The flight startes correctcly. The drone went to the edge of the grid and started the mission. It took only the three first photos and then it send a message about syncing thr photos. The drone finished the mission but it stopped at thr last point and did not retutn to the home point. I had to turn it back manually.
I use an android version. I have the last version of pix4d capture and the last firmware on the drone. I tried again the samd grid the next day and it worked. The problem has two axes. The first one is that the drone completes the grid without taking the photos. The second one is that the drone stopped at the last point of the grid and I had to take it back manually. In total the problem was appeared twice in the last three days. In the same time I have completed another two grids without problems.