On Sat, Jun 29, 2019 at 11:30 PM Ulrike Fischer wrote:

Am Thu, 27 Jun 2019 16:36:02 +0200 schrieb luigi scarso:

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On Thu, Jun 27, 2019 at 4:16 PM Ulrike Fischer wrote:

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\documentclass{article} \usepackage{luatexja}

\begin{document} abc \end{document}

breaks down with luatex 1.11 with an assertion error : https://i.stack.imgur.com/c8Rcj.png

confirmed under linux < https://mailman.ntg.nl/mailman/listinfo/dev-luatex> lualatex: ../../../source/texk/web2c/luatexdir/tex/texmath.c:2623: after_math: Assertion `varmem[(0+5+5+5+5+5+5+2+2+2)].hh.v.RH!=null' failed.

After a big debugging I reduced the error to this plain tex example:

$\directlua{}$ \bye

The assertion error appears as soon as one use \directlua inside math.

ok, thank you. -- luigi