Running Doom Emacs.

Plantuml works as expected when generating images, for instance:

:file *.png

The problem is, there is no ASCII generated in results: verbatim mode:

:results verbatim

What could go wrong?

The same problem observed here: https://discourse.doomemacs.org/t/problem-with-plantuml-src-block-results/3603

According to this article:

https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-plantuml.html

there seems to be no reason why this should not work.