Unable to see Recent Files submenu when "File" menu teared

Logged In: YES
user_id=149084

On XP:
If you tear off the menu and highlight Recent Files,
the submenu doesn't drop down, just as OP claims.
But if you then click on Recent Files, the submenu
appears, and can be torn off.

A more serious issue is that if you click again, the
submenu disappears (as expected) but you can't
open it again without clicking somewhere else on
the torn-off menu first.

On Linux the drop down doesn't appear on mouse-
over, you have to click. And clicking again on
Recent Files doesn't close the submenu, you have
to click elsewhere or hit esc twice, closing both
the submenu and the Files menu. If the Files menu
is torn off, esc does nothing.

I claim that these are (minor) Tk issues, possibly tkinter.
Lowering priority. Someone needs to do a cutdown to
resolve where the problem lies.

Logged In: YES
user_id=149084

If not torn off, Recent Files window appears on all desktops
(OpenBSD/Ion, Linux/Enlightenment) and if torn off, it doesn't
have that problem but the window has no name.