On Sun, 8 Nov 2020 at 11:37, Pablo Rodriguez <oinos@gmx.es> wrote:

> On 11/8/20 11:18 AM, Sylvain Hubert wrote:
> > Hi Pablo,
> >
> > thanks for the suggestion. Here's the minimal example which shows the
> > difference:
> >
> >     \definefontfamily[face][rm][dejavuserif]
> >     \starttext\switchtobodyfont[face, 24pt]ɑ\stoptext
> >
> > this should warn:
> >
> >     fonts           > checking > char ɑ (U+00251) in font
> > 'LatinModernMath-Regular-4' with id 10: missing
>
> Well, you are switching before setting up a body font.
>
> I don’t know whether this might be a bug in ConTeXt (see previous
> report), but I would set up the body font always first:
>
>     \definefontfamily[face][rm][dejavuserif]
>     \definefontfamily[deface][rm][dejavusans]
>     \setupbodyfont[deface]
>     \starttext a\switchtobodyfont[face, 24pt]ɑ\stoptext
>

Thanks, it works!

And I agree that it probably indicates the existence of a bug, since by
changing "\setupbodyfont[deface]" to "\setupbodyfont[dejavu]" in your
example, the problem reappears:

    \definefontfamily[face][rm][dejavuserif]
    \setupbodyfont[dejavu]
    \starttext a\switchtobodyfont[face, 24pt]ɑ\stoptext

Sylvain