Figure does not display LaTeX expressions in JupyterLab and Jupyter Notebook

There is an issue with rendering LaTeX titles in JupyterLab:

fig = go.Figure()
fig.add_scatter(y=[1,3,2], mode='lines+markers')
fig.layout.update(title='$\\text{Negative Log of Estimated Survivor Function}$', 
                  xaxis_title='$t$', yaxis_title='$-log(S(t))$',
                  height=600)
fig.show()

Does not actually display the titles:

And this is strange as earlier today it did work fine.

I have encountered other anomalies in JupyterLab, such as after restarting the session, one image elongates and stays like that.
Does not happen every time though.

Here it is:

Sometimes it elongates and stays like that:

UPDATE 1:

I've just updated to 4.1.0 and now the LaTeX titles are displayed. But, the mentioned anomaly is still there.

UPDATE 2:

I have opened the notebook today again and the title disappears.

If it is of any help. here is what is displayed in the terminal:

Reproduisez la figure fournie dans JupyterLab et Jupyter Notebook en utilisant les versions de Plotly 4.0.0 et 4.1.0 décrites. Commencez par comparer les titres LaTeX rendus et le comportement d’allongement de l’image, puis examinez la sortie du terminal affichée dans l’issue. La tâche est terminée lorsque les titres LaTeX sont rendus de manière cohérente et que les figures ne s’allongent plus après le redémarrage de la session.