https://openstreetmap.org/copyright | https://openstreetmap.org |
Copyright OpenStreetMap and contributors, under an open license |
https://openstreetmap.org/copyright | https://openstreetmap.org |
Copyright OpenStreetMap and contributors, under an open license |
Most of the times that I see this it's because not enough of the object was downloaded. The thing about Mapnik is that it has the whole object and not just a part of it.
I'm not sure how this can be further analyzed without more details so I'm closing...