Shelly MQTT, not able to add new devices

[gomsoo]

dear all

I've a lot of shelly devices, works like a charm with Shelly MQTT.

When I now try add new devices (Shelly Bulb DUO, Shelly Bulb RGBW, Shelly 1PM), I get the error:
2022-07-04 08:45:44.244 Error: MQTT: 'onMessage' failed 'KeyError':'(-1,)'.
2022-07-04 08:45:44.244 Error: MQTT: Exception traceback:
2022-07-04 08:45:44.244 Error: MQTT: ----> Line 1351 in '/home/user/domoticz/plugins/Shelly_MQTT/plugin.py', function onMessage
2022-07-04 08:45:44.244 Error: MQTT: ----> Line 326 in '/home/user/domoticz/plugins/Shelly_MQTT/plugin.py', function onMessage
2022-07-04 08:45:44.244 Error: MQTT: ----> Line 176 in '/home/user/domoticz/plugins/Shelly_MQTT/mqtt.py', function onMessage
2022-07-04 08:45:44.244 Error: MQTT: ----> Line 1231 in '/home/user/domoticz/plugins/Shelly_MQTT/plugin.py', function onMQTTPublish

The old existing devices still working fine.

On MQTT Explorer the new devices also looks good.

Version: 2022.1

What could be the reason?

Thanks for your suggestions
Michi

[waltervl]

It is better when you post your question in the Shelly MQTT plugin topic: viewtopic.php?t=25656.

And also check that topics for hints.