Posted by abelsromero on
URL: https://discuss.asciidoctor.org/CustomHTMLConverter-tp8088p8095.html

Could be the number is only initialized if the attribute `sectnums` is passed as argument. I have been setting it in the document.
If it helps, I pushed my test here: https://github.com/abelsromero/asciidoctor-templates-example.

Be aware this is just an example an there are issues explained in the README.