Notebooks - Cluster absent from list

Hi -

I'm working with Hail through jupyter notebooks in Firecloud. I've come across what seems to be a bug.

After going through the setup for a cluster and clicking "Create", I was returned to the notebook list page but no cluster was added to list with the "Creating" status (with no error message given). I tried again to create the cluster, using the same name, and got

Error: Cluster amp-t2d-op/make_wgsa_kt already exists in Creating status
Code: 409
Source: leonardo

After ~10 minutes, the notebook list page still does not show my cluster. See screenshots below for the behavior.

I'm concerned that a large cluster is running without actually showing up on this list page. Is there another way to ensure that no clusters are running without showing up in the FC UI?

Thanks!