Check attachment:

Background job is executing, but executed column has a value which is less than started. (i.e. job started at 2:33 PM and ended at 10.AM in the morning (on the same day). 

Have you see anything like this before?

If you run the following query, it reports such jobs.

select * from transaction_sys_local_tab where executed < started

Customer is on Apps8. 

One thing I can think of: The customer tried to stop the job when it was executing and probably does not have patch 118609.

If anyone has seen such odd behavior, please let me know.

Thanks