On Moodle 3.11 and MathJax 2.7.9
In site admin/plugins/filters/MathJax I added a backtick (`) as explained by the text at the bottom of the page.
But testing the delimiter in a question does not seem to work:
MathJax still renders the TeX, so it is enabled, just the AsciiMath is not working.
What could be causing this issue? Is there anything else that needs to be enabled for AsciiMath to be used?