An error in Jupyter cell stops the plotting of previous figures

Some figures require some time to be plotted. If another Jupyter cell is executed later and raises an error, the plotting of previous figures is halted and possibly the figures are not correctly displayed.

Reproduce the issue in a Jupyter notebook by starting a slow figure, then executing a later cell that raises an error. Trace how the plotting work is interrupted and define done as ensuring earlier figures are displayed correctly despite the later cell error; the issue does not name project files or tests.

Written by the indexing model from the issue text.