Fibaro FGS222 - not switching properly

Thanks @TobyWindahl.
that’s exactly, what I tried as well, but played around with different settings (even without command=switch_binary and with the refresh_interval like in my Wall Plug Switch).
However, the xml would be helpful.
You can find it here:
/var/lib/openhab/zwave/node4.xml (my relay is node4).
Again, thanks for your help.