Wrapperizer

First, you can do this entirely with Publish, there is no need to configure all of the things you've done to try to work around the issue. You can configure your consumers by convention, and let them get configured on their own endpoints. The one part you missed is the way the messages are published.

From your List, my suspicion is that you were calling Publish(T message) where T was inferred to be IntegrationEvent. This is why you're only getting messages on that exchange. You need to use the Publish(object message) overload, so that the appropriate type is determined.

You can simply assign each message in the list to object, and then call Publish with that object. Or, you can force the use of the overload: