[mkgmap-dev] Splitter

There is a ~20MB o5m file that needs to be split. But Splitter returns: "Cannot find a good split with exactly 2 areas" I hope a (the) dev can have a look at this? Thanks! The tile is here: http://osm.pleiades.uni-wuppertal.de/garmin/20140703/63240007.o5m See for more info and a link to the o5m file: http://forum.openstreetmap.org/viewtopic.php?pid=434024#p434024