Routing data update interval

Dear all,

When I am planning a trip on my phone with the LoRouter, I check the surface type of the route, especially when planning a cycling trip.

If there is a part of the road with unknown surface which I know the surface of (local knowledge or satellite image), I edit the way in Openstreetmap.

When I delete the respective routing data file and download it again, Locus still does show an unknown surface for that way. The same happens when I empty the cache after deleting the routing data.

Is that a Locus internal/backend issue? Could you tell me how and how often the data is compiled? Would be great to learn more so I can adjust my OSM update routine accordingly.

Best

Vincent