Currently when Route Plotting fails, it just said "Route plotting failed" and doesn't show what it managed to calculate. Can you please change it so that it does? At least that would let us follow the route as far as it goes and then give us the option to recalculate and replot via an alternative route once we get to the end of the line. It's rather frustrating to attempt to plot routes that are thousands of ly long and then have it say it can't plot it after it's already managed to calculate up to 80-90% - just give us the option to follow it as far as it could calculate!