Currently the plugin has poor fault tolerance when editing formulas in latex format. There are various scenarios like:

- enter two $$, return, then enter $$
- Go back to the end of the first line and enter ---stuck

You can type in latex formula from this site and copy it to answer's formula and edit it a few times, it often gets stuck!

report some bug for plugin formula v1.2.9：

- The formula of block mode（$$） is not displayed in the view view, edit preview is basically normal
- Formulas for block mode, line breaks (\ 3 times or \ 2 times ?) or alignment (&) of multiple lines are sometimes problematic

```
$$
f(n) =
\begin{cases}
n/2, & \text{if }n\text{ is even} \\\
3n+1, & \text{if }n\text{ is odd}
\end{cases}
$$
```