When sending a message using the Broadcast interaction model I am seeing duplicate messages received by a single destination.
It appears that we are sending broadcast messages per connection and not per destination.
You should be able to reproduce the issue with this project: https://github.com/gregwhitaker/netifi-broadcast-example
You will need to change the netifi.client.poolSize property in the application.properties file for the service. I set it to 1 as a workaround for the issue.