Scheduled a job to run once and job and ran overnight. This morning the "State" indicated "Complete"

Results tab. Results is a grey circle. Date completed is Monday January 1, 0001 12:00:00 AM (create date is correct).
Note other odd results. Files produced from job is about 1/10th completed.

This was one of 4 concurrent jobs running the other three started almost same time are still running.
I am trying to figure out what happened and why there is not error messages. Error logging is set to LOW. I am going to adjust to High and rerun after other jobs complete. The date Completed is somewhat baffling?
Any ide