On Mon, 11 Oct 2021, Paul A. Rubin wrote: > Any error messages related to the bibliography in the LaTeX log? Paul, The only latex.log on this host is usr/share/texmf-var/web2c/latex.log from March 24, 2015. And there's a /usr/share/texmf-var/web2c/pdflatex.log from Feb 17, 2021. Nothing from today. Rich