FTP Limit users to directories - won't take in Vmin 3.72

In Webmin-Servers-ProFTPD Server- Files and Directories

I am trying to restrict a user to only his home directory (it’s a guy who just has to upload some audio files once in a while), but when I click the radio button, and then Apply Changes, “Limit users to directories” always refreshes to None.

I did get it to set to Home Directory once, but when I login as this guy with gFTP, I can still see the whole Virtual Server.

I am interested in other, hopefully simple, options, too.

Thanks,
Ken

the user is supposed to see all of his virtual server, that is /home/user/

else it may be a bug which can be submitted under issues.