Hi WanMil, The Vanajavesi multipolygon looks partially inverted on my map, as you can see in the attached crop of a QLandkarte screenshot. The bay to the south of the pointer is way http://www.openstreetmap.org/browse/way/43149608 and the lake is this multipolygon: http://www.openstreetmap.org/browse/relation/302922 The eastern tip of the inverted triangle could be near the east endpoint of the way, http://www.openstreetmap.org/?lat=61.1396522&lon=24.3896432&zoom=18 None of these have been edited recently. It seems to be this map tile: 63240002: 2822016,969728 to 2916352,1172416 # : 60.553894,20.808105 to 62.578125,25.157318 It would be easier to troubleshoot this if splitter produced something that can be cut by Osmosis. Any ideas what could be causing the issue? Marko
