Copying descript.ion

Opus does not always copy descript.ion files. I have 'copy metadata' and 'preserve the description of copied files' checked, but doing a copy from one folder to an other copies all the files but sometimes not the descript.ion file. So you cannot do a 1:1 backup.

Thanks a lot

Is Preferences / Folders / Folder Behaviour / Use 'descript.ion' file comments system instead of NTFS comments on or off?