You may have specified a default wildcard filter for the site's server directory listings. The wildcard filter limits directory listings to files of a specific type. For example, if the filter specifies *.txt, directory listings will show only files that match the wildcard (that is, files ending in .txt).

• The default wildcard filter for server directory listings is set on the Directories tab in the Site Properties dialog box.
• When a wildcard filter is in effect, the filter will be shown in the title bar of the FTP Site pane (the right pane).
• To temporarily override the default wildcard filter for server directory listings, use View > Filter. To see all files and folders in the directory, type * (an asterisk).