[luatex] Reproducible font cache corruption (?) with LuaHBTeX, Version 1.12.0 (TeX Live 2020)

Peter Dedecker peter.dedecker at kuleuven.be
Wed Dec 2 11:52:19 CET 2020

Dear all,

I have a repository with two Latex files that are processed with LuaTeX. Individually these files process fine, but if I process one then switch to the other then I reliably obtain an error at the the very end of the typesetting:

> warning  (pdf backend): unreferenced destination with name 'equation.0.6'
> </usr/local/texlive/2020basic/texmf-dist/fonts/opentype/public/tex-gyre/texgyre
> termes-bold.otf>
> ! error:  (file ) (type 0): cannot find file ''
> !  ==> Fatal error occurred, no output PDF file produced!

Fixing this error requires that I delete the Luatex font cache. More specifically, I execute
> rm -rf ~/Library/texlive/2020basic/texmf-var/luatex-cache/generic/*

This is 100% reproducible, and affects both Linux and Mac.

Is there any interest in fixing this? Or should I just upgrade to a later version of Luatex? But how do I do that with TeXLive? I can provide a copy of the source materials to the developers upon request, though I cannot make the documents publicly available.


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