Cannot find my processes in jBPM business-central 'Process Overview'

Issue

• I cannot load my processes from Guvnor in business-central. I see the following in the log:

14:10:04,413 INFO  [RepositoryServlet] admin authenticated for rest api
14:10:04,413 INFO  [RepositoryServlet] PackageName: defaultPackage
14:10:04,413 INFO  [RepositoryServlet] PackageVersion: LATEST
14:10:04,414 INFO  [RepositoryServlet] PackageIsLatest: true
14:10:04,414 INFO  [RepositoryServlet] PackageIsSource: false
14:10:04,455 INFO  [RepositoryServlet] admin authenticated for rest api
14:10:04,455 INFO  [RepositoryServlet] PackageName: org.acme.insurance.pricing
14:10:04,455 INFO  [RepositoryServlet] PackageVersion: LATEST
14:10:04,455 INFO  [RepositoryServlet] PackageIsLatest: true
14:10:04,455 INFO  [RepositoryServlet] PackageIsSource: false
14:10:04,650 ERROR [CommandDelegate] Could not load processes from Guvnor: null

• jBPM Console doesn't list my process once I added a model jar to the package

• I cannot load my process from Guvnor in business-central even if I haven't add a model jar to the package and there are no visible errors in the log