This is the downstream description:

Using the reproducer application from playground.zip, the deployed application cannot be inspected navigating to > Runtime > Server Groups > target-ha-server-group > target-ha-node-2 (on host-controller-1) > EJB > TargetBean > View

An error occurs, viewing the error message shows:

  Outcome:
    "WFLYCTL0030: No resource definition is registered for address [
        (\"deployment\" => \"playground-roc-target-server.ear\"),
        (\"subdeployment\" => \"playground-roc-target-ejb.jar\"),
        (\"subsystem\" => \"ejb3\"),
        (\"stateless-session-bean\" => \"TargetBean\")
    ]"

The playground.zip contains a README.md that explains how to use the project to reproduce the issue.

Note: The issue seems to be fixed already upstream as it does not occur anymore with WildFly 20.0.0.Beta1-SNAPSHOT from commit 87c4841536f7b3e6b208872aa3ab880d80e0eca

This is a clone of the upstream Jira HAL-1658.

The Description of the upstream Jira is:

After deploying an application containing an EJB, the deployed application cannot be inspected navigating to Runtime -> hosts -> slave -> server -> ejb

The following error is thrown:

"WFLYCTL0030: No resource definition is registered for address [
    (\"deployment\" => \"ejb-in-war.war\"),
    (\"subsystem\" => \"ejb3\"),
    (\"stateful-session-bean\" => \"GreeterEJB\")
]"