These problems which include lousy code of certain Chinese fonts in pdf that is generated by MkIV, seem to connect with LuaTeX.
>From revision 1525 to 1535, LuaTeX can always work very well except text of using SimSun font is lousy code in pdf. After cleaning $TEXMFCACHE, I compiled revision 1540 of LuaTeX and used it, and then I encountered fails to load almost Chinese fonts. However, if I don't clean $TEXMFCACHE generated by revision 1535 of LuaTeX and use revision 1541, there is no any problem. ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________