ecolab.inspect in VS Code notebook not working

I would love to use ecolab, but I interact with Jupyter notebooks from within VS Code, using their native support for notebooks. When I execute `ecolab.inspect(obj)` it does render an element that looks like it should expand, but the dynamic interaction is not working. If I click on the expand arrow nothing happens.

I wonder, is that a known limitation, or should it work? Any tips for a workaround, maybe it requires some settings?