Web UI is adding 'Failure exit code(s) 1' to jobs as a default behavior. If you code a job in the desktop client and put exit code 1 as a success and then edit the same job thru the web ui it will add 'Failure exit code(s) 1' to the job. This will cause it to be corrupt and you can no longer edit it in the desktop client.
CA Workload Automation DE Web Client r12, r12.0.01, r12.0.02
This issue has been identified as a defect.
Fixed in Workload Automation DE Web Client r12 SP3 Release.