I just noticed that you stated V12 -- I am not sure if V12 has this feature (never spend much time with V12).
If you are not On-Demand, you could add a logger to see what the server is doing with your XOG request payload.
Look here for how to add a logger:
http://www.ca.com/us/support/ca-support-online/product-content/knowledgebase-articles/tec573491.aspx
Mine looks like this, I added a XOG appender (copy of STDOUT)
Then added a category for com.niku.xog
So when I run my client xog command I get an app-ca-xog.log file which has log entries about my xog request.
V/r,
Gene