Recently installed workload automation de 11.3 SP4 agent to windows and linux server. I used the install other configuration option to install SP4 to a separate directory (WA_Agent) . Turns out the windows box was able to communicate to the system but could not run any jobs. The linux box ran several jobs but was not able to run one specific job. I ended up uninstalling SP4 and re-installing it using the upgrade option. Has anyone else experienced this?