pn.pane.LaTex does not handle \hline in an array environment?

Panel
1 
pn.pane.LaTeX(r'$\left(\begin{array}{rr|r}1 & 2 & 3\\ 3 & 4 & 5 \end{array} \right)$')

works as expected, but

pn.pane.LaTeX(r'$\left(\begin{array}{rr|r}1 & 2 & 3\\ \hline 3 & 4 & 5 \end{array} \right)$')

does not. The same string in a Markdown cell does produce the expected result.
Any suggestion on how to get this to work?

pn.pane.LaTeX_problem
pn.pane.LaTeX_problem2008×484 56.5 KB

2

Maybe there’s a different backend, but if not, seems like a bug. Can you file an issue?