Equation not properly rendered (md->typst)

[FreekPols]

The following equation is not rendered correctly in md->typst:

$$ \left. \begin{array}{ll} \frac{d\vec{p}1}{dt} &= \vec{F}{21} \ \ \frac{d\vec{p}2}{dt} &= \vec{F}{12} = -\vec{F}_{21} \end{array} \right } \Rightarrow $$ The final } is on a single line, not covering the whole equation