When I changed permissions on an NTFS drive, all files are hidden in Finder. How do I make them visible again? I have a Seagate external hard drive which is formatted in NTFS. The hard drive came with this Paragon NTFS driver. It works great, but when I clicked "Apply Permissions to Enclosed Items" in the sharing preferences panel (shown below for clarity), all the files on that drive are now invisible in finder. This happens no matter what I select for the permissions.

I know the files are all there, since lsing in the terminal shows them, but they just don't appear in the finder. Also, all the directories on the drive do appear, so only single files are affected.

I'd rather not reformat to HFS+ since this drive is sometimes used by Windows computers. Is there something else I can try?
Open Terminal and type: defaults write com.apple.finder AppleShowAllFiles -bool true; killall Finder. As suggested in the command, it shows all hidden files.