You ran luatex when you needed to run lualatex. This is indeed confusing that LyX uses luatex when it exports to lualatex. It uses pdflatex (and not pdftex).
el On 2022-07-27 17:38 , Wolfgang Engelmann wrote: [...] > lyx24x -f -e luatex A-SP-Jul26.lyx> wolfgang@Fuji:~/Dokumente/PUBLIKATIONEN-EIGENE/A-SP-2022$ luatex A-SP-Jul26.tex
> This is LuaTeX, Version 1.15.0 (TeX Live 2022) [...] -- lyx-users mailing list lyx-users@lists.lyx.org http://lists.lyx.org/mailman/listinfo/lyx-users
