Yesterday I installed a new LMTX instance *ex nihilo*. Unfortunately, the
new instance will not load my typescripts. My several commercial fonts and
the typescripts I wrote for them reside in the texmf-project tree, along
with a style file that loads them. I load the style file in my source files
with the \environment command.

The files in texmf-project are properly indexed. I know this, because the
style file's name appears in the log, because I can list the fonts with mtxrun
--script fonts --list --files --all --pattern=Dolly*, and because he style
file evokes \showframe and \showgrid; the result of which I see in the
typeset results.

Regardless of whether a typescript files, e.g. type-DollyPro.tex, is in the
texmf-tree or in the same directory as the ConTeXt source file, evoking
\usetypescriptfile[type-DollyPro] fails. The log says:

fonts           > typescripts > unknown library 'DollyPro'
fonts           > typescripts > unknown library 'DollyPro'

However, including the typescripts in the ConTeXt source file succeeds;
which would seem to imply that my typescript definitions are correct.

Using an old instance: LMTX LuaTeX 2.03 20191227 + ConTeXt MkIV 2019.12.27
19:26, loading the typescript via the style file works as expected.

I regret that my mwe remains academic, since you need the Dolly font to run
it.

Any encouragement in how to resolve this would be much appreciated.

Cheers,

Michael