An FTP task finds 0 files when using an administrative drive as the source, Include subfolders is checked, and a Date filter with Created Date > 24 days ago. The source drive has 3.5 TB of files to search through. The task runs for 58 minutes, finds 0 files, and reports "Success".
There are definitely files that meet the criteria. It successfully finds files when the "Include subfolders" in unchecked.