disapearing lakes

Playing around with http://cycle.travel/map I discovered some dry lakes.
Lake Geneva, Lago Magiore, Lago di Lugano and at some zoomlevels the Markerwaard (North-East of Amsterdam). Maybe there are more problems, but I did not check the whole world.

I checked it on OSM and it looked OK. But on OSM there is something wrong with Lac de Neuchâtel. On some zoomlevels there is no water. :frowning:

I don’t understand what’s wrong,but I do understand there is something wrong. :slight_smile:


I’ve been trying to work out why it’s doing that for a while. I think it’s a problem with the Lua tag-transform mode of osm2pgsql when a way is both a multipolygon (e.g. a lake) and an admin boundary. But I haven’t quite nailed it down yet…

See https://github.com/gravitystorm/openstreetmap-carto/issues/754