I note that the 150 appears to be in All Logs entry report. 

There are reasons that a 150 can exist that are not caused by end user
intervention. If the Parent process sends a kill signal to the child
process that child process will exit with a 150, however these 150s
normally do not show up in the Activity monitor.

That brings me to my question: What status did the job for Client1
display in the Activity monitor?

If you had it enabled I would suggest looking at the trouble shooting
logs; Media server bpbrm, bptm (or bpdm)Client bpbkar and bpcd to see if
there is any reason for the 150.

Thank you,
Mike Heck
CFT Symantec