I want to join contourline maps (created with mkgmap ~ rev 1230) with my normal maps and create an mdr index for them. This works fine as long as I only try to create an mdr/mdx index for my "normal maps", however when I include any contourline maps mkgmap crashes: Can anyone identify the error easily? (the maps in question are here: http://openmtbmap.x-nation.de/maps/mtbaustria.7z.zip (6*.img) and the contourlines theese http://openmtbmap.x-nation.de/maps/contourlines/openmtbmap_at_srtm.7z.zip (7*.img) D:\Garmin\0mtb\mtbaustria2>start /low /b /wait java -enableassertions -jar -Xmx4800M d:/garmin/mkgmap_svn_mdr/dist/mkgmap.jar --family-id=7365 --product-id=1 --overview-mapname=MDR --index --max-jobs=3 6*.img 7*.img Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: -68 at java.util.ArrayList.get(Unknown Source) at uk.me.parabola.imgfmt.sys.BlockTable.physFromLogical(BlockTable.java:112) at uk.me.parabola.imgfmt.sys.Dirent.getPhysicalBlock(Dirent.java:262) at uk.me.parabola.imgfmt.sys.FileNode.read(FileNode.java:156) at uk.me.parabola.imgfmt.app.BufferedImgFileReader.fillBuffer(BufferedImgFileReader.java:256) at uk.me.parabola.imgfmt.app.BufferedImgFileReader.get(BufferedImgFileReader.java:86) at uk.me.parabola.imgfmt.app.trergn.RGNFileReader.linesForSubdiv(RGNFileReader.java:147) at uk.me.parabola.imgfmt.app.map.MapReader.linesForLevel(MapReader.java:123) at uk.me.parabola.mkgmap.combiners.MdrBuilder.addStreets(MdrBuilder.java:201) at uk.me.parabola.mkgmap.combiners.MdrBuilder.onMapEnd(MdrBuilder.java:112) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:358) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:124) at uk.me.parabola.mkgmap.main.Main.main(Main.java:121) For the contourlines my style-file was very simple so I don't really understand how that could have caused the problems: # Contours take their name from the elevation setting. contour_ext=elevation_minor & ele>0 { name '${ele|conv:m=>ft}'; } [0x20 resolution 23] contour_ext=elevation_medium & ele>0 { name '${ele|conv:m=>ft}'; } [0x21 resolution 22] contour_ext=elevation_major & ele>0 { name '${ele|conv:m=>ft}'; } [0x22 resolution 20] contour_ext=elevation & ele>0 { name '${ele|conv:m=>ft}'; } [0x21 resolution 20]