I am not sure when this started as far as what was upgraded. In Jupyterlab all output is showing as latex statements inside $$s and not rendering.

If I copy the output and paste it into a markdown cell it renders correctly.

I.E. {\mu,\nu,\rho}::Indices(position=free). x::Coordinate. \partial{#}::Derivative.

F*{\mu\nu}::AntiSymmetric;
F*{\mu\nu}::Depends(x).
A_{\mu}::Depends(x,\partial{#}).
\delta{#}::Accent;

Output: ${}\text{Property Accent attached to}\delta{#}.$

Input: S:= -1/4 \int{ F_{\mu\nu} F^{\mu\nu} }{x};

Output: ${} - \frac{1}{4}\int F^{\mu \nu} F_{\mu \nu}\,\,{\rm d}x$

If I view the file in Jupyter notebook the code renders correctly.

?? Thanks, ChuckW

When I posted this the 2nd example output rendered correctly in the post but not in Jupyterlab?