Application detection (Scan Filters) fail to synchronize (Sync Failure).
Validate the File Size is set properly. Smaller Than is the maximum size of a file to be scanned. Larger Than is the minimum size a file to be scanned.
Setting the Smaller Than to a value less than the Larger Than is invalid and would cause files within the size range to be skipped.
Broadcom is aware of the potential confusion and lack of error checking and will look to address this in the future.
Symantec DLP documentation