No topic causes all MQTT nodes to disconnect

General
1

Just noticed that injecting a message into MQTT out without setting a topic causes all MQTT nodes to disconnect for a few seconds.

I realise it should have a topic, but the node should really handle this more gracefully ?

It looks like the issue has been around for a few years -

2

If you are using mosquitto then I think it may be that mosquitto disconnects you. In the mosquitto log I see
Client tigger disconnected due to malformed packet.

3

I am using Mosquitto, but if there is no topic defined, I think the node should just show an error and not pass to the broker, since this then affects all flows.

4

Can you raise an issue on github so we can track and resolve?

5

Done -

6

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