Hello,
Sorry for digging up such an old thread. But it seams the bug is still there with 5.15.5513 version of CCleaner.
Selecting "Include files and subfolders" is supposed to "cause CCleaner to search all subfolders within the selected folder for the files to be deleted", which it does. The problem is that it also deletes every empty folder within the included one, which should only happen when choosing "Include files, subfolders and the folder itself".
Is this bug supposed to be solved, 5 years later...?
Thank you for your help.