When having and embedded Camel endpoint it DRL, it doesn't work with executable model. Reproducer can be found here [1]. For the test to reproduce the issue, it is needed to use executable model project in the buildAll() call here [2].

[1] https://github.com/kiegroup/droolsjbpm-integration/blob/5f95febee0c08131080537b3e804711d0db126ca/kie-camel/src/test/java/org/kie/camel/embedded/camel/component/KieEmbeddedEndpointChannelTest.java#L90
[2] https://github.com/kiegroup/droolsjbpm-integration/blob/master/kie-camel/src/test/java/org/kie/camel/embedded/camel/component/KieCamelTestSupport.java#L99