LaTeX code blocks do not work inside description tags

[jjmarks]

I'm working inside a <details> block. I can render any single TeX commands with $x+y$, however code blocks are not working.

For example:

$$\begin{aligned}X&=1\\\\&<2.\end{aligned}$$

renders

$$\begin{aligned}X&=1\\&<2.\end{aligned}$$

however, when inside <details>, the code

<details>
$$\begin{aligned}X&=1\\\\&<2.\end{aligned}$$
</details>

renders as

$$\begin{aligned}X&=1\\\\&

By contrast, in my VScode editor the <details> block renders as expected.