Like this example
I was walking up this road above Riley Horse Camp
I lost lock at Cast Creek TH 2
After I walked up the road, to a point just above the center of the picture, it reacquired but it was offset to almost the bottom of the picture.
Then it continued along parallel to my actual path for a while, but with a large offset.
Then, it "realized there was a large offset" so it gradually got back to the true position.
On the way back on the same road, it was just fine.
Difficult to get a piece of software to figure that out.