Hello, I believe this worked fine in June's beta but now gives an error. \starttext \definedfont[Samim] سلام \stoptext I got the font originally from here , but then removed the MATH table because it was causing an error at the time to get the attached version. Now the above code gives the following error: ...ntext/tex/texmf-context/tex/context/base/mkiv/l-lpeg.lua:290: bad argument #2 to '__div' (invalid replacement value) stack traceback: [C]: in function '__div' ...ntext/tex/texmf-context/tex/context/base/mkiv/l-lpeg.lua:290: in function 'splitter' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:159: in function 'addfeature' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otc.lua:730: in function 'enhancer' ...ext/tex/texmf-context/tex/context/base/mkiv/font-con.lua:1269: in function 'enhance' ...ext/tex/texmf-context/tex/context/base/mkiv/font-con.lua:1291: in function 'apply' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:246: in function 'load' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:538: in function 'otftotfm' ...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:566: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-otl.lua:565> (...tail calls...) ...ext/tex/texmf-context/tex/context/base/mkiv/font-def.lua:304: in function 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkiv/font-ctx.lua:492: in function 'loadfont' ...ext/tex/texmf-context/tex/context/base/mkiv/font-def.lua:418: in function 'read' ...ext/tex/texmf-context/tex/context/base/mkiv/font-ctx.lua:1172: in function <...ext/tex/texmf-context/tex/context/base/mkiv/font-ctx.lua:1059> Could you advise me on how to get over this issue? As far as I know, the font lacks Latin characters and is restricted to the Arabic/Farsi characters. In a more complicated example, I used dejavusans as fallback but the above MWE seemed fine, as far as I remember. Thanks, MHB