Artifact from derivative apostrophe

[MpVrooyeN]

When writing something like $f'(x)$ in an Obsidian note, when pushing to Anki it correctly put's it in a math block however it produces f&;(x)

I have been able to get around the issue of using $f^{\prime}(x)$, which is just a bit more annoying to write.

I am not using an custom regex or anything. Only have CurlyCloze active