Environment

Python Version:
Python 3.8.8

Nikola Version:
Nikola v8.1.3

Operating System:
Fedora 34

Description:

Emacs Orgmode source files are failing to be rendered as html if they contain org macros. The following org file can be exported successfully (with the {{{x_variable}}} being replaced with the value First Blogpost!) if using standard orgmode export. Using this orgmode source:

#+BEGIN_COMMENT
.. title: Test macro
.. slug: test_macro
.. date: 2021-06-16 012:31:21 UTC-05:00
.. tags: test
.. link:
.. description:
.. type: text
#+END_COMMENT

#+MACRO: x_variable First Blogpost!

This is my {{{x_variable}}}

I get the error:

Undefined Org macro: x_variable; aborting

when using either nikola build or the manual nikola command:

emacs --batch -l ./init.el --eval '(nikola-html-export "~/Downloads/blog/blogpost.org" "~/Downloads/blog/blogpost.html")'

This was working awhile back.