Engine connection settings are not checked for validity when establishing the connection
You incorrectly defined an engine connection to a distributed engine specifying a value for Remote Server Name. The Remote Server Name is not a valid setting for a connection to a distributed engine.
The check runs when you save the engine connection definition or when you run a test connection to that engine, but no exception about the incorrect setting is returned.
Cause and solution:
Whenever the test connection is run, only the mandatory fields for that specific type of engine, distributed rather than z/OS®, are used to test the connection. Fields that are not mandatory, such as Remote Server Name for distributed engine connections are not taken into account.