error writing input to commandERROR: Invalid username and/or password

This is the error I have been getting on my RMAN notifcations on my backup jobs for the last day or so. The title is exactly how the message is formatted. > ~~~End Step Output/Error Log~~~ > Error Log:BackupOp > error writing input to commandERROR: Invalid username and/or password > > ~~~End Step Output/Error Log~~~ I only have 2 backup jobs and both are affected by this. Not sure how much information here is useful but what I have been looking at is the SYS account the jobs are using is not locked out. select account_status from dba_users where username = 'SYS'; ACCOUNT_STATUS -------------------------------- OPEN The emagent.trc log is showing this pair of lines for every backup job since the first one failed. 2019-02-06 23:44:26,791 Thread-14472 ERROR command: failed to write to stdin of process 6228: (error=232, no message available) 2019-02-06 23:44:26,791 Thread-14472 ERROR command: nmejcc_feedInput: received -11 from process write Restarting the DBConsole service has no affect and the errors persist. I can manually run full and archivelog backups just fine as sysdba. I see no reason to blame RMAN since I can run the backup rman scripts just fine. I think this is just an EM issue.