Also I saw yet another issue , I tried to deploy BPMN2.0 xml file using the gui itself and it would say unable to deploy because of some issue but it does not mention the issue. Not sure why the deployment works with the API but not with the GUI.
"Yet another issue", that's not a very positive way to approach a first beta version. Can you explain in detail which steps you performed and if there are server log messages please include those as well.