Crag distance shows "N/A" inconsistently on home screen

The distance to some crags is shown as "N/A" on the home screen, even though distance information is normally available. This seems to happen especially for more distant crags. (no problem on nearby crags) In one instance, both Skriua and Berdorf initially showed "N/A". After the app crashed and a restart of the app, Skriua updated and showed the correct distance, while Berdorf still showed "N/A".