error with lualatex but not with xelatex

[Ulrike Fischer]

Am Thu, 27 Jul 2023 06:17:04 +0100 schrieb Ken Moffat via tex-live:

> This is texlive-2023 with patches to update LuaTeX to 1.17.0,

Well then you should perhaps at first try if you get the same error
with a native texlive (which has luatex 1.17.0 too). 

And I would suggest to delete the luatex-cache (typically in
\texlive\2023\texmf-var\luatex-cache), to avoid that some old cache
files interfere.

BTW: if you want spaces between paragraphs, consider to set \parskip
instead of planting a \vspace everywhere, see the parskip package.


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