Here's what a summary of the flight data looks like:
Upload and view flight logs from your DJI drones
www.phantomhelp.com
Ignore the crazy numbers in the speed column.
They are the result of an odd glitch in the Phantomhelp analysis.
The actual flight data in the data appears to be normal.
This is one of those frustrating incidents where teh flight data doesn't show the cause of the incident.
It only helps to eliminate some possible causes.
The battery charge level was not a factor as the battery was full at launch and when data ends <4 minutes later, it was at 84% with good individual cell voltages.
The data has no evidence of a collision, it ends with the drone in level flight426 ft higher than the launch point, making 9 metres/second on a heading of 351°.
Normally the drone would be expected to RTH on loss of signal, but the default Failsafe Action was changed to Hover if signal was lost.
The two remaining possibilities are that the drone suffered a power loss and fell from the sky .... or ..
that signal was lost (unlikely).
That would have left the drone hovering until the battery ran down and it autolanded.
The flight data ends with the drone at -20.07967 -69.26779, perhaps the drone ended up near there.