LaTeX no longer editable as of today
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Hey,
Have been writing some math-related articles the last few days. Everything has been fine until I rebooted this morning. Now LaTeX is not working correctly:
- Making changes to existing math blocks does not change the displayed equation
- Creating a new math block and entering an equation does not display anything
- When creating inline math, the entry box persistently displays “s is not a function” no matter what I enter, including when it’s blank
Tried on two browsers and a different PC, tried with new and existing posts, problem persists in all cases.
Could someone take a look? Thanks!
The blog I need help with is: (visible only to logged in users)
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The error message “s is not a function” in the WordPress editor is a classic indicator of a JavaScript conflict, typically caused by a recent background update that is preventing the LaTeX renderer from correctly processing your math blocks. Since you have already verified that this persists across multiple browsers and devices on katyscode.wordpress.com, the issue is likely a bug in the current version of the block editor’s visual interface. To bypass this while the editor is being fixed, you can use the LaTeX shortcode method directly inside a standard Paragraph block by typing your equation between $latex and $ tags, such as $latex ihbarfrac{partial}{partial t}Psi = hat{H}Psi$. This method uses a different rendering path that often remains functional even when the visual tools fail. Additionally, try going to Jetpack → Settings → Writing to toggle the “LaTeX” option OFF and then back ON, which can sometimes refresh the connection and clear the script error.