"Missing map" error, even the route is inside the loaded maps.

[CoSoCo]

Routing engine

• OsmAnd's in-app offline routing
• Any online routing provider (YOURS, openrouteservice, OSRM, etc.)

Routing Profile

Car, fuelsaving

Start and end points

Celle, Germany --> Solkau 4, Schnega, Germany
https://www.openstreetmap.org/directions?engine=graphhopper_car&route=52.7125%2C10.0622%3B52.9103%2C10.8392#map=10/52.7824/10.4520

Actual route

No route, because there is white space in that area, even the route is completely in Lower Saxonia.
Even "Hankensbüttel", 20 km from the border of Lower Saxonia, is not to find.

Expected route

https://www.openstreetmap.org/directions?engine=graphhopper_car&route=52.7125%2C10.0622%3B52.9103%2C10.8392#map=10/52.7824/10.4520

Maps you used (online or offline)

• [x ] Offline maps offered within the OsmAnd app for download. Germany->Lower Saxonia->Hannover + Germany->Lower Saxonia->Lüneburg .. Date: July 2024
• Online (tile / raster) maps

Your Environment

OsmAnd Version: 4.7.17 from F-Droid
Android version: 8
Device model: Samsung A3 2017

Anything else?

The dimension of the map does not match to the real borders of Lower Saxonia in Germany.

[CoSoCo]

I now have found out, that this issue is invalid.
To my astonishment the missing area belongs to Germany -> Lower Saxonia -> Braunschweig, which I hadn't downloaded.