Problems with switch Groups

Hey there,

I have some trouble, to switch on/off groups.
For example, I bought a silvercrest 3 Port Power Strip. Every port can be switched on/off separately. When I put all 3 Port in one group an switch the group on/off it doesn’t take any effect.

Could someone help me please?



Can you give us more information please ? About the device itself, the way you add it in the group, some screenshots or json … Many thanks.