As seen in JBQA-2994 and JBPAPP-3230, the farming service for the production profile was supposed to be restored, but it seems a configuration change in profile.xml was not done. Thus, the farming service is not enabled by default, even though all the libs and other configuration files are present.

The attached diff named profile.xml.diff in the linked JBQA-2994 shows what needs to be done in order to make it work.

Note that this was reported and fixed in EWP 5.0.0 (JBPAPP-3693).