Equation not rendering when using equation in gap filled question

[crystalvaughn]

When using a table with multiple rows in a gap filled question, if an equation is entered into the first cell of the table, Mathjax does not convert the equation. This seems to only happen if the first cell in the table is blank. If the equation is placed in the first cell of the table then it renders correctly.

[marcusgreen]

Could you export to xml and attache the question to a comment here. I generally do not recommend this question type for any numerical/mathematical work. This question type by contrast is specifically designed for such things, and the person who supports it is excellent.
https://moodle.org/plugins/qtype_formulas
If you want the ultimate math quiz questions then stack question type awesome but complex to set up.
https://moodle.org/plugins/qtype_stack
However I'd be happy to help you configure that up.

[crystalvaughn]

Yes here is a copy of the XML file of the question

questions-quiz-Gapfill test (copy)-20210405-1549.zip

[marcusgreen]

I have no idea why, but if you put () just before the table the MathJax seems to render. I tried on a core question type wordselect and this issue does not manifest, so it implies an issue in the parsing code in renderer.php in Gapfill.

[chen21590]

I have the same problem without any table [](url
questions-מטמטיקה - 7 class 19 - Admin User - (2)-שאלה של אלנט - בניה מחדש-20211109-1551.zip
)
you can solve this by adding
$output = format_text($output, FORMAT_HTML, ['noclean' => true]);
before you return the output in rendere.php

[marcusgreen]

I will investigate