I don't know if this works for all models but it did for my P3a, and its worth knowing for the future perhaps.
I lost my aircraft but found it again without a tracker.
To make it short, I lodged in a tree going backwards and as I was looking at the screen I lost contact with eyeball Mk1, but I could see on the screen that I was at an altitude of 6 feet.
I walked to the row of trees 300 feet out still looking at my screen map on the satellite view. I could see the red pointer a/c position. As I walked I saw a blue slowly moving dot and wondered what it represented. As I walked the dot moved and it dawned on me that this was the map position of the controller that I was carrying.
I walked towards the a/c symbol so that the blue dot and the aircraft symbol merged and nearly trod on the a/c in the very tall grass. It had fallen out of the tree and suffered a broken prop with no other damage.
My apologies if you know about the blue dot. I didn't.
Firmware versions :-
Go 3.1.5
P3A version 1.10.90
Controller 1.8.0