I have bad news and good news. :-) Unfortunately, TeX Live 2021 still has this bug. I tested version 20210325 (which is the latest on the historic TeX Live FTP site), with subversion tag texlive-2021.3 (which is the latest tag in the TeX Live repo). The good news is that I found a simple workaround: use pdftex instead of luatex to build the affected packages. I am currently building all packages matching ‘^texlive’ a few times to find the ones needing this workaround. So far, I found these: • texlive-amsfonts • texlive-amscls • texlive-babel • texlive-babel-swedish • texlive-latex-amsmath • texlive-generic-babel-english • texlive-latex-cyrillic • texlive-latex-graphics • texlive-latex-tools I will submit a patch to the guix-patches mailing list (with this bug in Cc:) as soon as the process finishes.