This MWE is an example of strange font behaviour according to the log and I do not understand what is causing it. ConTeXt complains "check count_components with mkiv" when the word 'suffi' is present (see log message below). Now comes the most strange: remove 'suffi' or shorten to 'suff' and the message goes away. I have put the full set of files inside the zip. dr. Hans van der Meer \setupbodyfont[termes] \starttext %================================================================= ConTeXt versie \contextversion \crlf %================================================================= this here: suffi (but suff is ok!) %================================================================= \starttyping fonts/mkiv/type-imp-texgyre.mkiv' close source > level 3, order 4, name '/Users/hansm/TeX/context/tex/texmf-context/tex/context/fonts/mkiv/type-imp-texgyre.mkiv' fonts > ! fonts > ! check count_components with mkiv ! fonts > ! \stoptyping \stoptext