Greetings forums, please assist with analysis of this glitch. While in auto and about 75% through a mapping mission, my PixHawk powered quad (AC 3.15) experienced an intense pitch & roll glitch, lost altitude and swung about 120deg off heading, but managed to recover and continue the mission, although I did lose my nerve and hit RTL soon after. RTL was uneventful and we executed a safe landing. No damage but a perplexing glitch and one that could easily have led to a crash.
The log file is attached - the glitch occurs at around line 15.135k. It appears as if the first event is a steep drop in channel 1, followed by channel 2, the other channels then swing wildly to compensate. It must have come very close to a flip.
Any thoughts on possible causes? I’ve now done about 5 hours of successful auto flying with this quad so things have been going well.