luaotfload-harf-plug.lua:408: bad argument #1 to 'char' (value out of range)

[Ulrike Fischer]

Am Tue, 27 Oct 2020 20:37:25 -0300 schrieb Phelype Oleinik:

>> Here is a small example that triggers the error.
>> Looks like it does not like \paragraph in front of align*
> 
> Here's a smaller one:

> It seems to boil down to this recipe:
>  - load polyglossia
>  - load fontspec
>  - \setmainfont
>  - \setbox with \textsc (also depends what is in \textsc)
>  - \unhbox
>  - BOOM!
> 
> Simply moving polyglossia after \setmainfont seems to work (no idea how
> well though).

polyglossia sets the luatex renderer to harfbuzz by default. So this
fails too:

\documentclass{article}
\usepackage{fontspec}
\setmainfont{TeX Gyre Pagella}[Renderer=Harfbuzz]
\begin{document}
\setbox0\hbox{\textsc{Vertical}}%
\unhbox0\par
\end{document}

-- 
Ulrike Fischer 
http://www.troubleshooting-tex.de/