Hi ,
Previous execution means previous workflow execution or previous action execution with in a workflow?
I think as i know if you have multiple actions with in a wokflow next action will start only if previous action is succeeded otherwise it fails. If its not working like this can you give the info output for that workflow id?
oozie job -oozie http://<oozie-server-host>:11000 -info <workflow-id>
Regards,
Chethan YM