Hi Gerd, I found another case where a split mp is not properly handled in mkgmap. When following relation (park with inner lake) is split verticaly (so that the lake is intersected) then the park is shown in only one of the generated img tiles. https://www.openstreetmap.org/relation/3351946 I have uploaded my test data to http://files.mkgmap.org.uk/ rj-mp-split.zip relation-3351946.osm.pbf (OSM data for this relation) areas-test.list (areas.list for splitter) Test code: java -d64 -Xmx8G -jar splitter.jar --split-file=areas-test.list relation-3351946.osm.pbf java -d64 -Xmx8G -jar mkgmap.jar -c template.args --gmapi --remove-ovm-work-files I am using mkgmap-r4574, but also tested with latest mkgmap-r4596 and the results are the same... regards, Ranko