I'm trying to build a map of Israel with Hebrew characters, but using --code-page=1255 a get the following assertion: at uk.me.parabola.imgfmt.app.srt.SRTFile.writeWeights(SRTFile.java:117) at uk.me.parabola.imgfmt.app.srt.SRTFile.writeSrt4Chars(SRTFile.java:99) at uk.me.parabola.imgfmt.app.srt.SRTFile.write(SRTFile.java:63) at uk.me.parabola.mkgmap.combiners.MdrBuilder.init(MdrBuilder.java:117) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:605) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:128) at uk.me.parabola.mkgmap.main.Main.mainStart(Main.java:143) at uk.me.parabola.mkgmap.main.Main.main(Main.java:114) With --unicode I also get an assertion: Exception in thread "main" java.lang.AssertionError: -125 at uk.me.parabola.imgfmt.app.BufferedImgFileWriter.put1u(BufferedImgFileWriter.java:154) at uk.me.parabola.imgfmt.app.SectionWriter.put1u(SectionWriter.java:78) at uk.me.parabola.imgfmt.app.srt.SRTFile.writeWeights(SRTFile.java:113) at uk.me.parabola.imgfmt.app.srt.SRTFile.writeSrt8(SRTFile.java:166) at uk.me.parabola.imgfmt.app.srt.SRTFile.write(SRTFile.java:68) at uk.me.parabola.mkgmap.combiners.MdrBuilder.init(MdrBuilder.java:117) at uk.me.parabola.mkgmap.main.Main.endOptions(Main.java:605) at uk.me.parabola.mkgmap.CommandArgsReader.readArgs(CommandArgsReader.java:128) at uk.me.parabola.mkgmap.main.Main.mainStart(Main.java:143) at uk.me.parabola.mkgmap.main.Main.main(Main.java:114) Probably I'm missing something obvious, but I always used --code-page=1251 and have no idea what it may be