we have been informed that it is preferably to not spam the logs with errors

src/c3nav/routing/api.py

@@ -179,7 +179,9 @@ class RoutingViewSet(ViewSet):
                 address="d4:f9:8d:2d:0d:f1"
             )
         except MeshNode.DoesNotExist:
-            return None
+            return Response({
+                "location": None
+            })
         msg = node.last_messages[MeshMessageType.LOCATE_RANGE_RESULTS]
 
         locator = RangeLocator.load()