Issue with align inside tex and markdown

[dvd101x]

Hi, I found an issue that I would like to bring to your attention. First of all I'm very grateful for this product and I understand this is a very particular issue.

I was working on some katex equations of this form

$$ \begin{align} D &= \frac{1}{2}\rho _ g \pi a^2 u^2 C_ D(Re) \tag{1.5} \\ Re &= \frac{2 \rho _ g u a}{\mu _ g} \tag{1.6} \\ C_ D &= \frac{24}{Re} + \frac{6}{1 + \sqrt {Re}} + 0.4 \tag{1.7} \end{align} $$

I was using a markdown cell with this

${tex.block`
\begin{align}
D &= \frac{1}{2}\rho _ g \pi a^2 u^2 C_ D(Re) \tag{1.5} \\
Re &= \frac{2 \rho _ g u a}{\mu _ g}  \tag{1.6} \\
C_ D &= \frac{24}{Re} + \frac{6}{1 + \sqrt {Re}} + 0.4  \tag{1.7} 
\end{align}
`}

Unfortunately I found this error

ParseError: KaTeX parse error: No such environment: align at position 8: 
\begin{̲a̲l̲i̲g̲n̲}̲
D &= \frac{1}{…

I tried without the align and separating block by block and it works fine but not aligned

$$ D = \frac{1}{2}\rho _ g \pi a^2 u^2 C_ D(Re) \tag{1.5} $$

$$ Re = \frac{2 \rho _ g u a}{\mu _ g} \tag{1.6} $$

$$ C_ D = \frac{24}{Re} + \frac{6}{1 + \sqrt {Re}} + 0.4 \tag{1.7} $$

${tex.block`D = \frac{1}{2}\rho _ g \pi a^2 u^2 C_ D(Re) \tag{1.5}`}
${tex.block`Re = \frac{2 \rho _ g u a}{\mu _ g}  \tag{1.6}`}
${tex.block`C_ D = \frac{24}{Re} + \frac{6}{1 + \sqrt {Re}} + 0.4  \tag{1.7}`}

This might be the source of the issue:

• Observable uses v0.11.1
• Align is supported since v0.13.0
• Tag per row of align is supported since v0.15.1

So my request is upgrading the katex library if possible.

Reference: Equations source

[dvd101x]

Hi just checked today to validate the issue is still present. Just sharing the info in case someone finds it useful.