I am also seeing this problem with the spinning wheel on the web GUI. It’s a recent problem that started to happen.
If I open the Vera mobile app at the same time to connect to the Ezlo Plus, it also has a spinning wheel when I tried to go in to devices and it took a long time for the devices to eventually appear. But they did appear.
However back on the web GUI its still got the spinning circle.
If I refresh the Chrome browser (Windows 10) it then loads the web GUI but connects to my Ezlo Atom which it seems to default to.
If I then change the controller and select the Ezlo Plus, it then goes back to the screen with the picture of the two hubs and I have a spinning wheel again and its not connecting.
If I then SSH in to the hub and issue a reboot command.
I then wait and now when I try to load the web GUI for the Ezlo Plus hub its working and loads up.