Bug Unity Hub 3.0.1 - blank browser screen after login - doesn't open

I just updated to 3.0.1 from 2.4.5

After installing the "sign in" button appears on the Unity hub app.
I click on sign in and put username / password in and then a browser window appears with a blank page and nothing happens from there.

Have uninstalled, reinstalled. Cleared cache on browser, switched browsers, uninstalled, rebooted tried again.

I'm losing tons of time on this.


attached what the browser screen looks like, maybe the url can help make some sense.