check the logs

[Dr Eberhard W Lisse]

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 at Fuji:~/Dokumente/PUBLIKATIONEN-EIGENE/A-SP-2022$ luatex 
A-SP-Jul26.tex
 > This is LuaTeX, Version 1.15.0 (TeX Live 2022)
[...]