The context docment below shows two anomalies. One is the occurrane of the "unknown font latinmodernmath-regular, loading aborted" and two is that the compilation process halts on the first 'D' in the word Dutch, and no item bullet is typeset. The line "\setmainfont[ipaexm]" seems to cause this irregular result. -- Example document -- \usemodule[simplefonts] \setmainfont[ipaexm] \definesymbol[5][$\diamond$] \starttext 世界、今日は! \startitemize[5] \item Dutch in English \stopitemize \stoptext -- end example -- -- START REPORT -- mtx-context | run 1: luatex --fmt="/usr/local/texlive/2012/texmf-var/luatex-cache/context/210a96fef5fbab446fd11afa77acb026/formats/cont-en" --lua="/usr/local/texlive/2012/texmf-var/luatex-cache/context/210a96fef5fbab446fd11afa77acb026/formats/cont-en.lui" --backend="pdf" "./test.tex" \stoptext This is LuaTeX, Version beta-0.70.2-2012062812 (TeX Live 2012) \write18 enabled. (test.tex ConTeXt ver: 2012.05.30 11:26 MKIV fmt: 2013.3.17 int: english/english system > cont-new.mkiv loaded (/usr/local/texlive/2012/texmf-dist/tex/context/base/cont-new.mkiv system > beware: some patches loaded from cont-new.mkiv ) system > test.top loaded (test.top) fonts > latin modern fonts are not preloaded languages > language en is active resolvers > modules > loaded: 'simplefonts' (/usr/local/texlive/2012/texmf-dist/tex/context/third/simplefonts/t-simplefonts.mkiv loading > ConTeXt User Module / Simplefonts <+ /usr/local/texlive/2012/texmf-dist/tex/context/third/simplefonts/t-simplefonts.lua>) fonts > typescripts > unknown: library 'loc' {/usr/local/texlive/2012/texmf-dist/fonts/map/dvips/lm/lm-math.map}{/usr/local/texlive/2012/texmf-dist/fonts/map/dvips/lm/lm-rm.map}{/usr/local/texlive/2012/texmf-dist/fonts/map/pdftex/context/mkiv-base.map} fonts > defining > forced type otf of latinmodernmath-regular not found fonts > defining > font with asked name 'latinmodernmath-regular' is not found using lookup 'file' fonts > defining > unknown font latinmodernmath-regular, loading aborted fonts > defining > unable to define latinmodernmath-regular.otf as [simplefonts:1-12pt-mm-mr--3] fonts > defining > forced type otf of latinmodernmath-regular not found fonts > defining > font with asked name 'latinmodernmath-regular' is not found using lookup 'file' fonts > defining > unknown font latinmodernmath-regular, loading aborted fonts > defining > unable to define latinmodernmath-regular.otf as [simplefonts:1-12pt-mm-mr--2] fonts > defining > forced type otf of latinmodernmath-regular not found fonts > defining > font with asked name 'latinmodernmath-regular' is not found using lookup 'file' fonts > defining > unknown font latinmodernmath-regular, loading aborted fonts > defining > unable to define latinmodernmath-regular.otf as [simplefonts:1-12pt-mm-mr--1] fonts > defining > forced type otf of latinmodernmath-regular not found fonts > defining > font with asked name 'latinmodernmath-regular' is not found using lookup 'file' fonts > defining > unknown font latinmodernmath-regular, loading aborted fonts > defining > unable to define latinmodernmath-regular.otf as [simplefonts:1-12pt-mm-mb--3] fonts > defining > forced type otf of latinmodernmath-regular not found fonts > defining > font with asked name 'latinmodernmath-regular' is not found using lookup 'file' fonts > defining > unknown font latinmodernmath-regular, loading aborted fonts > defining > unable to define latinmodernmath-regular.otf as [simplefonts:1-12pt-mm-mb--2] fonts > defining > forced type otf of latinmodernmath-regular not found fonts > defining > font with asked name 'latinmodernmath-regular' is not found using lookup 'file' fonts > defining > unknown font latinmodernmath-regular, loading aborted fonts > defining > unable to define latinmodernmath-regular.otf as [simplefonts:1-12pt-mm-mb--1] fonts > math: unset for global bodyfont simplefonts:1 at 12pt ! Math error: parameter \Umathquad\displaystyle is not set. system > tex > error on line 11 in file test.tex: Math error: parameter \Umathquad\displaystyle is not set ... 1 \usemodule[simplefonts] 2 \setmainfont[ipaexm] 3 4 \definesymbol[5][$\diamond$] 5 6 \starttext 7 8 世界、今日は! 9 10 \startitemize[5] 11 >> \item Dutch in English 12 \stopitemize 13 14 \stoptext 15 \47>:5 ->$\diamond $ \symb_place_indeed ...name \??symbol #1\endcsname \relax \endgroup \symb_place_retry ...name \symb_place_indeed {:#1} \else #1\fi \symb_place_normal_c ...lace_retry \currentsymbol \fi \symb_place_normal_b ...else \symb_place_normal_c \fi <to be read again> \else ... l.11 \item D utch in English ? R OK, entering \nonstopmode... ! Math error: parameter \Umathquad\displaystyle is not set. system > tex > error on line 11 in file test.tex: Math error: parameter \Umathquad\displaystyle is not set ... 1 \usemodule[simplefonts] 2 \setmainfont[ipaexm] 3 4 \definesymbol[5][$\diamond$] 5 6 \starttext 7 8 世界、今日は! 9 10 \startitemize[5] 11 >> \item Dutch in English 12 \stopitemize 13 14 \stoptext 15 \47>:5 ->$\diamond $ \symb_place_indeed ...name \??symbol #1\endcsname \relax \endgroup \symb_place_retry ...name \symb_place_indeed {:#1} \else #1\fi \symb_place_normal_c ...lace_retry \currentsymbol \fi \symb_place_normal_b ...else \symb_place_normal_c \fi <to be read again> \else ... l.11 \item D utch in English fonts > math: unset for global bodyfont simplefonts:1 at 12pt backend > xmp > using file '/usr/local/texlive/2012/texmf-dist/tex/context/base/lpdf-pdx.xml' pages > flushing realpage 1, userpage 1 ) mkiv lua stats > used config file - selfautoparent:/texmfcnf.lua;selfautoparent:/texmf/web2c/texmfcnf.lua mkiv lua stats > used cache path - readable: '/usr/local/texlive/2012/texmf-var/luatex-cache/context/210a96fef5fbab446fd11afa77acb026' (order 1) mkiv lua stats > used cache path - readable: '/home/usrdir/.texlive2012/texmf-var/luatex-cache/context/210a96fef5fbab446fd11afa77acb026' (order 2) mkiv lua stats > used cache path - writable: '/home/usrdir/.texlive2012/texmf-var/luatex-cache/context/210a96fef5fbab446fd11afa77acb026' mkiv lua stats > resource resolver - loadtime 0.312 seconds, 2 scans with scantime 0.000 seconds, 0 shared scans, 16 found files, scanned paths: /home/usrdir/.texlive2012/texmf-config /home/usrdir/texmf mkiv lua stats > stored bytecode data - 303 modules, 65 tables, 368 chunks mkiv lua stats > cleaned up reserved nodes - 39 nodes, 9 lists of 438 mkiv lua stats > node memory usage - 2 glue, 3 penalty, 9 attribute, 29 glue_spec, 3 attribute_list mkiv lua stats > node list callback tasks - 6 unique task lists, 6 instances (re)created, 1166 calls mkiv lua stats > used backend - pdf (backend for directly generating pdf output) mkiv lua stats > loaded tex modules - 1 requested, 1 found (*-simplefonts), 0 missing mkiv lua stats > loaded patterns - en::2 mkiv lua stats > jobdata time - 0.000 seconds saving, 0.000 seconds loading mkiv lua stats > callbacks - 1244 direct, 1381 indirect, 2625 total mkiv lua stats > randomizer - resumed with value 0.63939153851913 mkiv lua stats > lxml preparation time - 0.000 seconds, 0 nodes, 15 lpath calls, 0 cached calls mkiv lua stats > result saved in file - test.pdf mkiv lua stats > loaded fonts - 1 files: ipaexm.ttf mkiv lua stats > fonts load time - 0.531 seconds mkiv lua stats > math processing time - 13.750 seconds mkiv lua stats > luatex banner - this is luatex, version beta-0.70.2-2012062812 (tex live 2012) mkiv lua stats > control sequences - 34370 of 65536 + 100000 mkiv lua stats > current memory usage - 41 MB (ctx: 42 MB) mkiv lua stats > runtime - 16.766 seconds, 1 processed pages, 1 shipped pages, 0.060 pages/second mtx-context | fatal error: return code: 1% -- END REPORT --