Hi, the same here mkgmap: r3390 splitter: r412 precompiled sea - not used precompiled bounds - not used pbf: europe-latest.osm.pbf from Geofabrik (03.01.2015 01:49) the bad tile is a little bit more south-east, may be this helps to locate the bug... (see screenshot) first I thought it is a tile-size problem but other tiles are larger or a style - currently I am experimenting with topo styles - but alas I'm not the only one with this... Regards, Hanspeter Von: thesurveyor@wolke7.net [mailto:thesurveyor@wolke7.net] Gesendet: Sonntag, 4. Januar 2015 22:08 An: mkgmap-dev@lists.mkgmap.org.uk Betreff: [mkgmap-dev] Lake Geneva is dry: how to find the error? Hi, today I tried to build a new version of a map which I created last November. It's a map of the area around Lake Geneva. I have the working environment from November available, so I thought I can reuse it. I created the map out of an europe extract from Geofabrik and I downloaded today the current extract and started the build. All the other things (the build script with parameters, sea-file, bounds-file) stayed the same as in November. All went fine until I had a look at the map - Lake Geneva is dry (see attached screenshot). The grey lines in the screenshot show the tiles of the map (from splitter). All other things like routing seem to work as aspected and all other lakes around are ok too (at least those which I have checked. I updated my environment to the actual versions but the result is the same. Now I use mkgmap: r3392 splitter: r416 precompiled sea: sea_20141027.zip precompiled bounds: bounds_20141027.zip pbf: europe-150103.osm.pbf from Geofabrik At this time I don't have an idea how to search for the error. It would be fine if someone of the list could give me an hint how to start with searching. What do you think: is it a data problem? splitter problem? mkgmap-problem? style-problem? what else? Regards, Gert