Your Flight Log Viewer is absolutely amazing! Great job. I noticed at the 1-minute and 4.3-second mark that the “propeller fell off”, which must have been when it experienced a catastrophic break. It seems like there might have been a stress fracture or an imperceptible crack in the propeller that wasn't visible during the pre-flight inspection. Regardless of the cause, kudos to you for developing such a fantastic app, @msinger!
Forgot to mention, good catch on the non OEM DJI props. Very good probable cause of this failure. So many things need to work properly to keep these safely in the air. Batteries and props being what we can easily monitor and control. Others reading this thread should take note..I would like to see pictures of the opposite sides of the props please.
From what I’m seeing in the previous pictures, I wondering if they are other than DJI products.