The Executed Batch JOB (JOBS) is not showing in Process Monitoring Perspective. (It's showing in executions alright!)
To reproduce the issue create a simple @echo Hello batch > Execute > Right-click job and view in Monitoring or try to directly search in Monitoring Perspective.
Release : 12.3
Auto Job deactivation was selected by user
In the Automatic Deactivation section you define when executed tasks should be deactivated. Deactivated tasks are removed from the list in the Process Monitoring perspective