Issue with accessing remote jupyter notebook on Dataspell: folders won't open

Has anyone had much luck accessing jupyter notebooks remotely with Dataspell?

I have chosen to "Connect to Jupyter server using URL" according to the instructions on this page

You can see in the image that I have successfully accessed 10.4.0.70/7411 in the workspace. However, none of those folders, "rnd_projects", "analysis_tools", etc. will expand out. Those folders are full of other folders and notebooks, but when I click on them nothing happens.  myACPNY

How do you access those folders? It was working for me a minute ago but it just stopped working. I can still connect to the notebooks in my browser so I know that the connection is still possible.

Any help will be appreciated.