Hi, flight logs download on the controller to about 60% then fail, I’ve tried this multiple times lately. If you contact gopro to request the logs they want to charge $50 ?? my karma has had a few flights lately and the first battery flight goes okay, then when I change to a second battery, after in the air a short time I receive the error like others have re gps/calibration and it’s very difficult to control and I’m a very experienced drone pilot. The karma has had 2 major crashes lately (trees and into a cliff) because I couldn’t control it, it just did it’s own thing and there was no manual way to control it. From this forum it sounds like the karma should be buried deep into a hole and forgotten about...shame but true.