"TypeError: Cannot read property 'length' of undefined"

[Flutho]

I got following message.

"TypeError: Cannot read property 'length' of undefined"

It seems to be the subnode „status“

[GryKyo]

I had this issue but noticed that the flow was attempting a TLS or HTTPS connection to my MQTT broker. I am not sure I have a TLS port enabled on my broker which is local and firewalled.

Edit the broker settings you are using in any of the subflows, update the MQTT broker settings including username/password if necessary and deploy the flows again, should work.