[NTG-context] Iwona error

[Hans Hagen]

On 2/6/2023 9:57 PM, Bruce Horrocks via ntg-context wrote:
> Just installed today's update (ConTeXt  ver: 2023.02.06 17:58 LMTX) and tried out the 3 fonts mentioned.
> 
> \setupbodyfont[iwona]
> % \setupbodyfont[kurier]
> % \setupbodyfont[antykwa]
> \starttext
> Some text
> \stoptext
> 
> I did a ./install.sh update with no obvious errors and afterwards Kurier and Antykwa worked for me on the above MWE but Iwona failed with the log entry:
> 
> [snip]
> luatex warning  > font: lua-loaded font '21' with name 'ex-iwonar' has no characters
> fonts           > virtual math > the mapping is incomplete for 'iwonamath' at 7pt
> tex error       > tex error on line 1 in file ./tt.tex:
> 
> lua error:
> 
> 	registered function call [1154]: ...-64/tex/texmf-context/tex/context/base/mkxl/math-vfu.lmt:677: attempt to index a nil value (local 'fci')
> stack traceback:
> 	...-64/tex/texmf-context/tex/context/base/mkxl/math-vfu.lmt:677: in upvalue 'virtualize'
> 	...-64/tex/texmf-context/tex/context/base/mkxl/math-vfu.lmt:1014: in function <...-64/tex/texmf-context/tex/context/base/mkxl/math-vfu.lmt:725>
> 	(...tail calls...)
> 	...-64/tex/texmf-context/tex/context/base/mkxl/font-def.lmt:485: in field 'read'
> 	...-64/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1377: in function <...-64/tex/texmf-context/tex/context/base/mkxl/font-ctx.lmt:1234>
> 	(...tail calls...)	
> [snip]
> 
> Not sure if that's to do with my setup or true for everyone. I've never used those fonts before if that makes a difference.
can you try with

https://github.com/contextgarden/context-distribution-fonts/blob/main/fonts/data/gust/iwona-math/ex-iwona.enc

wipe the font cache first

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