Hi,

with the last beta from the minimals ConTeXt fails to load
the fonts, the error message is

! LuaTeX error ...ntext/tex/texmf-context/tex/context/base/l-table.lua: 
244: attempt to call method 'find' (a nil value)
stack traceback:
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:244: in  
function 'key'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:289: in  
function 'do_serialize'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:371: in  
function 'do_serialize'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:371: in  
function 'do_serialize'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:331: in  
function 'do_serialize'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:371: in  
function 'do_serialize'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:427: in  
function 'serialize'
	...ntext/tex/texmf-context/tex/context/base/l-table.lua:478: in  
function 'tofile'
	...text/tex/texmf-context/tex/context/base/luat-tmp.lua:169: in  
function 'savedata'
	...text/tex/texmf-context/tex/context/base/luat-tmp.lua:274: in  
function 'write'
	...text/tex/texmf-context/tex/context/base/font-otf.lua:906: in  
function 'load'
	...text/tex/texmf-context/tex/context/base/font-otf.lua:1845: in  
function 'otf_to_tfm'
	...text/tex/texmf-context/tex/context/base/font-otf.lua:2066: in  
function 'read_from_open_type'
	...text/tex/texmf-context/tex/context/base/font-def.lua:333: in  
function <...text/tex/texmf-context/tex/context/base/font-def.lua:315>
	(tail call): ?
	...text/tex/texmf-context/tex/context/base/font-def.lua:260: in  
function 'read'
	...text/tex/texmf-context/tex/context/base/font-def.lua:645: in  
function 'read'
	...text/tex/texmf-context/tex/context/base/font-def.lua:752: in  
function 'command_2'
	<main ctx instance>:1: in main chunk.
\lowleveldefinefont ...s ", "\@@fontfallbacks " )}
                                                   \edef \somefontspec  
{at \s...
\xxdododefinefont ...efont {#4}\newfontidentifier
                                                   \let  
\localrelativefontsiz...
\fontstrategy ...me \fontclass #2#3#4#5\endcsname
                                                   \tryingfontfalse \fi
<inserted text> ...yle \fontalternative \fontsize
                                                   \fi \iftryingfont  
\fontstr...
\synchronizefont ...strategy \the \fontstrategies
                                                   \relax \fi  
\iftryingfont \...
<argument> \getvalue {\@style@ \fontstyle }
                                            \edef \fontstyle  
{\fontstyle }\if...
...
l.4 \setupbodyfont[sabon]

TIA
Wolfgang