I have been testing my drone mounted with black cube and arducopter 3.6.8. After some initial tests and some manual tuning, we went on with doing the autotune. Later after completing the autotune the quad was quite stable as compared to previous tests. But when to test the maneuverability of the quad we did some aggressive roll and pitch actions. Eventually quad was unable to perform those moves and crash landed. We are unable to solve the issue please help or advice.
Please find the log here. https://drive.google.com/drive/folders/113b055Qqsg7jEwmWOjvZpYmYsSN1wCi-?usp=sharing