remaking the format produced no change but removing those files from the cache did solve the problem.

thanks a lot!

On Sun, Aug 21, 2016 at 9:59 AM, Wolfgang Schuster <schuster.wolfgang@gmail.com> wrote:
21. August 2016 um 12:53
Hello,

The code snippet at the end used to work a few months ago when I reported a rendering bug.  But now the font does not load and I see the following error.  (It's not an issue with simplefonts because \definedfont[KFGQPCUthmanTahaNaskh*arabic] does not work either.  the font is published here.
Remake the format (context --make en) or delete the font entries (uthmantn1-ver10.tma|tmc) in the cache ($TEXMF/texmf-cache/luatex-cache/context/<HASH>/fonts/otl/). Please try both suggestions and report which of them helped.

BTW: The simplefonts module has been replaced with the \definefontfamily command (different syntax but included in the core).

%%%% begin example
\definefontfamily[testfont][rm][KFGQPC Uthman Taha Naskh][features=arabic]

\setupbodyfont[testfont]

\starttext
...
\stoptext
%%%% end example

Wolfgang

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