Shelly Plug S: switches on but not off
Maybe somebody can help: I included a Shelly Plug S device to Homebridge/Apple Home. Everything works fine using the Shelly App on my iPad. In Home an icon appears as expected:
![image](https://user-images.githubusercontent.com/63341787/87453221-7f86db00-c602-11ea-9fe8-68f13f064ac8.png)

Clicking on the icon I can switch on the plug, but not switch off. To switch it off, I need to use the Shelly app on my iPad. Furthermore, If I switch the Plug on using my iPad and the Shelly software, the 

Homebridge produces an output, which looks ok to me, but, again, the switching off does not work. Here the output:

[7/14/2020, 18:40:30] [Config] [HapClient] [192.168.0.42:51826 (CC:22:3D:E3:CE:30)] Got Event: [{"aid":45,"iid":13,"value":true}]
[7/14/2020, 18:40:32] [Config] [HapClient] [192.168.0.42:51826 (CC:22:3D:E3:CE:30)] Got Event: [{"aid":45,"iid":13,"value":false}]

Thank you for any advice you might have.
