During my last long run, my watch lost it's GPS signal at the 23 Km mark. Post that, the GPS tracking went awry with my distance after the run being displayed as 48 kms ( instead of it being 28, I had covered 5 kms more, after the GPS went off). Also after updating my run, I found the map was also different from the point in time where my watch lost signal, to the actual route I had covered.
I checked for a software update also ( On version 1.8.52), but I don't think anything newer is available.
Anyone who has faced a similar issue or has a resolution, please give a shout out!