Fausto De La Torre and Jose Miguel Loor, You can try restarting your server after making changes in guvnor and building your packages, the processes will then reflect in jbpm-console.
I'm experiencing the same problem. Processes which I create new in guvnor don't reflect into jbpm-console. Also, modifying previously created processes in guvnor doesn't reflect in jbpm-console. I have to restart my guvnor, only then can i see the changes. I do build my packages after making changes, still have to restart my server.
Following is my work env,
JBPM 5.2
Web designer 2.1
JBoss AS7
HTH
Darshan