Johannes Schlatow

That means you cannot reproduce this? Which texlive version are you using?

Using `lualatex` instead of `pdflatex` appears to be a solution.

I tried pdflatex from texlive 2017, 2019, 2021 and 2022. Only texlive 2017 was able to compile it successfully.

I'm not using a proxy but HTTPS with a self-signed certificate. The android client claims the host that the host is not reachable, but with HTTP it works. I installed...