I used the wipe function on some folders but it didn't work on some of them, then I realized they were all empty folders with nothing inside.
After the message "The selection contains no files. Click OK to remove the selected folders(s)." and clicking OK I have Wipe failed on the status bar. I don't know if I always had this problem. If I create a file inside the empty folders i.e. ctrl+shift+n then wipe removes both the file and the folder. XYplorer is version 12.10.