Incidents where the signal is lost before the critical part of the incident are always difficult because we don't have data recorded during what caused the loss of the drone.
The Standard uses wifi and tends to lose signal earlier than Lightbridge equipped drones.
Loss of signal is not uncommon at around 1600 ft.
Your Loss of Signal action was set at Return to Home so on losing signal the drone should have initiated RTH, climbed to RTH height (up 40 feet higher) and come home.
At the end of recorded data (3:38.1) the drone was at 158 ft and 1455 feet northeast of the home point.
GPS was perfect with 19 sats and the battery was strong at 82%.
The first things I looked for are the most common causes of lost drones to see what could be eliminated.
1. Battery
Eliminated since the battery was full at the start and still had plenty left when signal was lost
2. Obstacles and terrain
Eliminated as the home point and last recorded point were on nearly flat terrain with no higher ground or obstacles on the likely return path.
The drone was at 158 ft with the RTH height set at 200 ft which should have cleared any trees etc.
3. Wind
If the return path is into a strong headwind, that can affect the drone's ability to make headway in the direction of home.
Looking at the time from 1:43.3 to 1:59.2 ...
Altitude was 110 ft and you were hands off on the joysticks except for gently pushing the left stick right to slowly rotate the drone clockwise.
The drone should have been holding position and turning but I note the horizontal speed does not hold at zero as it would be expected to.
Instead, it drifts between 0.2 and 0.9mph, suggesting the wind was just slightly more than the Phantom could hold position in.
You flew north then climbed to 158 feet and turned towards the east, only using gentle pressure on the right stick before losing signal.
There's not enough conclusive evidence there to be certain but since the other usual suspects have been eliminated and the data shows the drone having trouble holding position at 110 feet, I'd like to investigate the possible effect of the wind more.
What do you remember of the wind conditions that day? (strength and direction?)
I don't have an Airdata account but
@sar104 might be able to see what Airdata estimates wind levels to have been.
RTH would have tried to fly home at 22 mph.
There's an indication that wind might have been a small problem at 110 ft.
It would have been stronger at 200 ft RTH height.
If the wind was blowing at >15 mph at 200 ft and the flight home was into a headwind, that could have made things difficult for a successful RTH.
@sar104 .. any ideas on wind for this flight?