Fritz Powerplug strange behaviour?

Hi Guys,

i’m totally addcited to HA. But i’ve a strange behaviour with 2 Fritz DECT Power plugs. When ever i want to switch state from on to off or vice versa, i need to do this twice.
The first time i use the switch in lovelace, it jumps back to the old position and after the second try it remains in the state i want it to have.
Can anyone give me a hint to this?

Cheers, Can