Try this device handler I’m using now and it works fine. https://github.com/erocm123/SmartThingsPublic/blob/master/devicetypes/erocm123/fibaro-single-switch-2-fgs-213.src/fibaro-single-switch-2-fgs-213.groovy
Try this device handler I’m using now and it works fine. https://github.com/erocm123/SmartThingsPublic/blob/master/devicetypes/erocm123/fibaro-single-switch-2-fgs-213.src/fibaro-single-switch-2-fgs-213.groovy