Hi, Wolfgang—

The mwe is:
\definefontfamily[mainface][rm][STIX Two Text]
[protrusion=quality,
expansion=quality,
mode=node,
force=yes,
features={default, f:oldstyle},
]
]
\definefallbackfamily[mainface] [mm] [STIX Two Text]
  [range=digitsnormal,
force=yes,
features=f:oldstyle]

\definefontfamily[mainface][mm][STIX Two Math]

\setupbodyfont[mainface, 20pt]

\starttext

Hello world!

123456789

\m{123456789}

\oldstyle{123456789}

\stoptext

The problem disappears if I remove either
\definefallbackfamily[mainface] [mm] [STIX Two Text]
  [range=digitsnormal,
force=yes,
features=f:oldstyle]
or
\definefontfamily[mainface][mm][STIX Two Math]

But in neither case do I get oldstyle numerals.

Note too that, when I remove \definefontfamily[mainface][mm][STIX Two
Math], my log file has
mkiv lua stats  > loaded fonts: 2 files: lmmono10-regular.otf,
lmroman10-regular.otf
with no mention of STIX Two Text.

Yet ConTeXt is aware of the STIX Two Math and STIX Two Text fonts.

WE had a power failure very recently. I wonder if that has screwed things
up.

Alan

On Fri, Apr 30, 2021 at 9:45 AM Wolfgang Schuster <
wolfgang.schuster.lists@gmail.com> wrote:

> Alan Bowen schrieb am 30.04.2021 um 13:19:
>
> Hi, Wolfgang—
>
> I copied all the fonts to a new document (file attached) and ran ConTeXt.
> The problem persists. The cause, I think, comes in the lines:
>
> \definefallbackfamily[mainface] [mm] [STIX Two Text]
>   [range=digitsnormal,
> force=yes,
> features=f:oldstyle]
> which used to give me oldstyle numerals.
>
>
> I'm unable to reproduce the error with your example and most of the
> fallbacks are ignored because I don't have the fonts.
>
> To ensure there is no problem with the format and font database delete the
> cache and rebuild it:
>
>         mtxrun --script cache --erase
>         mtxrun --generate
>
> When this doesn't help you simplify your example. First remove one
> \definefallbackfamily at a time and afterwards remove \definefontfamily
> until the error disappears.
>
> Wolfgang
>
>
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