eWeLink Smart Home add on vs S26, MiniR3 and Basic R2

S26 plug, MiniR3 and Basic R2 are not showing up in eWeLink Smart Home add on of ihost device. Any body can help on this how it work??
@Alexie can you pls advise on this? All devices have been updated to latest firmware.

It is okay Now. The reason was that these devices were connected to different WiFi to ihost. All good and work well now.