I went all the way through the installation steps. On my phone I can even edit Pistons. But on my desktop, the dashboard is totally blank, no text or graphics at all. The source of the page looks fine. Inspector shows that the last request was to:
https://maps.googleapis.com/maps/api/js/AuthenticationService.Authenticate
And it came back with a 200 status and what looks like a token, but then … nothing.
I’m using Chrome v 84.0.4147.105