Refresh doen't work

After having selected a folder in the folders list and clicked the button to view it's subfolders, i created a folder in the selected folder using the windows explorer. Then in the JFRenamer i clicked the Refresh button in the "File List" menu, but the new folder didn't appear in the folder list.
The same thing also happens in the file list after creating file or a folder in the selected path.
Finally refresh doesn't even refresh the name of a file, if you change the filename from the windows explorer.

Operating system: Windows 7
Program Version: 1.0.9