Hi Gerd, yesterday I updated to v542 (v531 same behaviour) of splitter and now splitting doesn't work anymore. I'm using an updated planet.o5m with the attached areas.list and the following command: java -Xmx10000M -XX:+UseCompressedOops -XX:+UseParallelGC -jar .\bin\splitter.jar --status-freq=0 --output=o5m --max-areas=2048 --max-threads=%threads% --overlap=0 --keep-complete --split-file=.\resources\areas.list --description=RadReiseKarte .\data\planet.o5m > splitter.log 2> splitter_error.log So far I tested again v476 to check if the o5m-file is still ok. v476 is running smooth. Do I need to change anything in my script or wait for one of the branches? Best regards, Henning Error: java.lang.IndexOutOfBoundsException: Index (14) is greater than or equal to list size (14) at it.unimi.dsi.fastutil.ints.IntArrayList.removeInt(IntArrayList.java:229) at uk.me.parabola.splitter.AreaSet.clear(AreaSet.java:109) at uk.me.parabola.splitter.AreaSet.subtract(AreaSet.java:140) at uk.me.parabola.splitter.MultiTileProcessor.orSubRelWriters(MultiTileProcessor.java:556) at uk.me.parabola.splitter.MultiTileProcessor.calcWritersOfMultiPolygonRels(MultiTileProcessor.java:436) at uk.me.parabola.splitter.MultiTileProcessor.endMap(MultiTileProcessor.java:264) at uk.me.parabola.splitter.AbstractMapProcessor.consume(AbstractMapProcessor.java:73) at uk.me.parabola.splitter.OSMFileHandler.execute(OSMFileHandler.java:159) at uk.me.parabola.splitter.ProblemLists.calcMultiTileElements(ProblemLists.java:250) at uk.me.parabola.splitter.Main.useProblemLists(Main.java:474) at uk.me.parabola.splitter.Main.start(Main.java:112) at uk.me.parabola.splitter.Main.main(Main.java:66)