So I experienced the problem again last night. Luckily, all it did was produce an error email.
It looks like the trigger fired off upon the file being created and released.
This is the way it's been set up and has not fired off more than once in months.
I have attached a screenshot of the trigger specifics.
Here is the log you asked for.
10/1/2012 8:06:22 PM Debug Memory cleanup
10/1/2012 8:06:22 PM Debug Saving output files and clearing output memory.
10/1/2012 8:06:22 PM Debug Output stored in memory: 670
10/1/2012 8:06:22 PM Debug ´Calling CleanUp.
10/1/2012 8:06:22 PM Debug Memory usage before cleanup: 116547584
10/1/2012 8:06:22 PM Debug Memory usage after cleanup: 116547584
10/1/2012 8:06:22 PM Debug Number of running Threads: 50
10/1/2012 8:06:22 PM Debug Number of Handles: 1162
10/1/2012 8:06:22 PM Debug Number of running Jobs: 0
10/1/2012 8:06:22 PM Debug Number of running Tasks: 0
10/1/2012 8:06:22 PM Debug Log was trimmed from: 1172 to 1005
10/1/2012 8:06:47 PM Debug File trigger event (objectchanged): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (enter lock): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (before counter check): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (in counter check): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (result object created): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (after file release): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (in fire trigger):
10/1/2012 8:06:47 PM Info Job started: Prod: Process RP266 Daily file from State Comptroller for EFT returns.
10/1/2012 8:06:47 PM Debug Job (842) was added to processlist: Prod: Process RP266 Daily file from State Comptroller for EFT returns.
10/1/2012 8:06:47 PM Debug Next action: ActionContinue
10/1/2012 8:06:47 PM Debug File trigger event (before sending result): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (after sending result): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (exit lock): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (objectchanged): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (enter lock): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (before counter check): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (in counter check): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (result object created): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug Running File Notification: 'Prod: Create task output file.'
10/1/2012 8:06:47 PM Debug Calling GetNextTaskProcess()
10/1/2012 8:06:47 PM Debug Next Task is: Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory
10/1/2012 8:06:47 PM Debug Next action: ActionContinue
10/1/2012 8:06:47 PM Debug Calling StartTaskProcess() with Task: Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory (0)
10/1/2012 8:06:47 PM Debug Task (2902) was added to processlist: Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory
10/1/2012 8:06:47 PM Info Task started: Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory (2902)
10/1/2012 8:06:47 PM Debug Entering wait loop. Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory (2902)
10/1/2012 8:06:47 PM Debug Impersonation result 1: <ImpersonationResultClass xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><LoggedOn>true</LoggedOn><ProfileLoaded>false</ProfileLoaded><UsingLocalLogon>false</UsingLocalLogon><ImpersonatedAs>NT AUTHORITY\SYSTEM</ImpersonatedAs><ErrorOccured>false</ErrorOccured><ErrorString /></ImpersonationResultClass>
10/1/2012 8:06:47 PM Debug File trigger event (after file release): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (in fire trigger):
10/1/2012 8:06:47 PM Debug Job 'Prod: Process RP266 Daily file from State Comptroller for EFT returns.' was queued because it was already running.
10/1/2012 8:06:47 PM Debug File trigger event (before sending result): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (after sending result): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Debug File trigger event (exit lock): 1, path: c:\ftp\ftp_root\RP266DALY
10/1/2012 8:06:47 PM Info Task completed: Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory (2902)
10/1/2012 8:06:47 PM Debug Process status - About to RemoveTaskProcess (2902)
10/1/2012 8:06:47 PM Debug Setting previous task in TaskProcessCompleted: Prod: Copy file from 'c:\ftp\ftp_root\RP266DALY' to the 'c:\ftp\ftp_root\RP266\<YYYYMMDD>RP266DALY' directory (1b38943a-abda-424f-bd18-8b1c72893db1) in job: Prod: Process RP266 Daily file from State Comptroller for EFT returns.
10/1/2012 8:06:47 PM Debug Process status - About to SendTaskProcess (2902)
trevinom attached the following image(s):