The very odd thing was that, if I clicked on GO and requested that the device joined me to the route at the closest entry point, it faithfully displayed and then ran the remaining portion of the route correctly, despite starting from a map view which was covered with laser beams.
You’ll also notice that:
a, The laser beams, all shoot out from a point that is behind me.
b. In post #53, they sometimes shoot out from a point west of my position and sometimes from a point north east.
c. The laser beams only extend to the edge of the route itself.
d. The laser beams are not uniform on the area they cover. It depends on the point they shoot out from.



Unfortunately, I didn’t manage to take a picture of the western part of the globe of the Earth, with the straight magenta line going down to the ocean beneath Nigeria. Nor did I manage to snap a picture when the device displayed not laser beams, but a waterfall of magenta, descending from the outline of the route downwards.
The problem started suddenly, mid-afternoon. The device had been functioning normally all day, displaying and running the same route normally from 09:30. It has also performed normally for the past two days and for all the days prior to that.
It’ll be interesting to see if the same thing happens again today. I’d like to think that I am a pretty experienced user, when it comes to Garmin devices in general. I have never seen anything like this.
Device updated to CN Europe NTU 2024.10 ALL South / ALL North before leaving home last Thursday.
Hardware version: V8 Pv3 DT R512S
Software version: 6.5
GPS Firmware: 9.00.37