Before taking off and immediately after landing, take 3 pictures of the calibration target in automatic panel detection mode as explained in this video.
Pay attention to the position of your drone/panel relatively to the sun:
Make sure the drone/camera is positioned such that the full calibration target is imaged:
If this automatic panel detection does not work, please update the camera firmware to the latest version. If this still is not working, you can capture the calibration images manually (Check for blue LED on MicaSense when taking these pictures)
Notify MicaSense support to report this issue!