Dear List,

I'm using the last update of ConTeXt Standalone, ConTeXt Process Management 0.63 - current version: 2016.06.25, on Windows 10.
All the fonts are installed (Theano Didot, ipaexmincho, GaramondNo8 and FreeSans, usw) and there seems to be a conflict between French and Ancient Greek. See logfile as attached piece. I've got a conflict and a fatal error in the logfile (but a 'q' command allows to overpass the alert) in line 2 of this code : 

\setuplanguage[fr][patterns={fr,agr}]
\mainlanguage[fr]
\setuplayout [backspace=40mm]
\setuppagenumbering[alternative=doublesided, location={header, inmargin}]
\setupmargindata[inmargin][location=inner, style={\ssx\setupinterlinespace[line=2.8ex]}]
\setupmarginframed[inmargin][align=right]
\setupbodyfontenvironment[default][em=italic]
\definefallbackfamily[mainface][serif][Theano Didot][preset=range:greek, it={Old Standard Italic}, force=yes]
\definefallbackfamily [mainface] [rm] [ipaexmincho] [range=cjkunifiedideographs]
\definefontfamily [mainface] [serif] [GaramondNo8][sc=NewG8 Regular SC]
\definefontfamily [mainface] [sans] [FreeSans] [rscale=0.7]
\setupbodyfont[mainface]
\setupindenting[1.5em]
\setupindenting[yes]

\setupwhitespace[medium]
\setupinterlinespace[line=3.2ex]

\setupitemize[each][margin=yes]

\setuphead[title][header=empty]

\setupheader[style={\sc}]
\setupfooter[style={\itxx}]
\setupheadertexts[Cours de Philosophie][][][{\getmarking[section]}]
\setupfootertexts[][][][© J.-P. Delange, 2010-2016 — La reproduction de ce cours est soumise à autorisation]
\starttext

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