Sanjoy or Taco, could you rename character 92 in enco-agr.tex and see if this makes the error disappear?
I did this: \definecharacter varia 92 and remade the formats. The error is different now: /tmp/testing123/tex/context/base/unic-031.tex/test-001.tex:21: Undefined contro l sequence. \@default@greekAlphaiotasubdasiavaria ...siavaria \greekAlpha \greekiota Should I make the same change to other lines in enco-agr.tex? By the way, here's the test file: \setuppapersize [S6][S6] \setupbodyfont [10pt] \setuplayout [backspace=12pt, topspace=12pt, width=middle, height=middle, header=0pt, footer=0pt] \setupcolors [state=start] \starttext \centerbox{\scale[factor=max]{\showunicodetable[002]}} \stoptext