Eachen on Ewelink not showing on Ewelink Cast

Hi there.

I have a couple of Sonoff Switches where there is neutral wires available in the wall. But there is a couple of wall boxes which doesn’t have neutral wire in my house.

So I needed to buy these Eachen Light switches (No neutral required) It works on the Ewelink app and it shows on the Ewelink app but I can not see them in the Ewelink Cast app or Ewelink Cast (web) I did check the settings at the Ewelink cast it gives me the option to add devices to the Cast, But the Eachen doesn’t show there.

How can I get them there?