The pilot error is that the drone was flown beyond the signal range of the RC. Looking at the log, the signal showed a steady decline in strength as it was being flown further away. It's the pilot's responsibility to maintain control of the drone while flying. It's true the IMU failed which is an issue on DJI's end, but this was avoidable if the drone was simply piloted back closer to the RC to maintain a signal link. If the drone was piloted back manually, the drone could have been sent in for a warranty service. I do note that the pilot had multiple opportunities to steer the drone for the brief moments when it reconnected allowing for the drone to be steered back. I don't mean to sound harsh, I'm just being honest, and realistic. Reality can be harsh sometimes, I know from first hand experience.
I had an idea you would say that, sorry i never noticed the slow decline in signal strength and agree that at this point its always wise to bring the AC closer to home.
In my case it was instantaneous with no slow decline. i found this strange as all this has only happened since the 0400 upgrades and my range seems far more limited now as well.
Also gents i would never go against what you guys say i am a complete novice here in comparison.
i was curious if it was just because he was beyond VLOS that made this OP error.