Groupby widgets not updating hvplot

I was given an account on an academic JupyterHub, and they created a “pangeo” conda environment for me using the environment.yml I gave them, which of course has the holoviz tools requirements (pins Bokeh < 3.0, etc).

When I run a simple holoviz test using hvplot in JupyterLab, I find the widgets are not updating the plot. In this screenshot below you can see I’ve moved the slider to 500, but the display hasn’t changed, still deploying 200:

I’m thinking they probably need to modify something in the base environment running their Jupyter server, right? But what would that be?

Do these instructions work?
Installing and Configuring HoloViews — HoloViews v1.15.4