Multirotor Crashed Mid AIR while Tuning

Hello There!!

So here’s the the quad configuration:

12S battery system, T motor Flame 80A ESC, Vector Technics 8008 Motor. It was our second flight performing Tuning and All of a sudden the quad fell out of air while it observe and could see the 4th motor has failed, we’ve done some preliminary log analysis and understood things, I’am looking for some more guidance to understand the reason of the crash. Would be great if you guys help out and take a look into this @amilcarlucas @Yuri_Rage .Thanks in advance

Here’s the log file attached

Post the .zip file created from the AMC software, then I’ll take a look.