Unable to delete or edit Google Cloud OAuth Client

We have recently set-up a number of OAuth clients within the Google Cloud console. We have noticed that a few hours after they are created we are no longer able to edit them. When we try and do see we see an error message saying there was an error when loading the client.

If we try and delete the clients we see a momentary spinner but the dialog doesn’t close and the client isn’t deleted.

Not being able to edit the client potentially makes sense, but not being able to delete it seems like it must be an error rather than a security feature.

What can cause this error? How can we delete the clients?