You want to use the Windows event collector to collect logs from Scan Engine instead of the native integration.
Requirement -> Symantec Scan Engine needs to run on Windows. (this does not work if you are running SSE on Linux/Solaris
Enable Scan Engine to write to Windows event log and disable the SSIM login via the web interface (set it to information):
If you open the Windows Event log, you should now see event from the Scan Engine written to the application log:
2 options to collect the Windows Event log from Windows: