Directory() does not include sub directories

Have you seen these, there might be some clues in these threads?

Win10 C6 Directory() 8min 40 secs, C11 Directory() 31mins 47 seconds - ClarionHub

DosFileLookup in Directory mode does not select Default Directory - ClarionHub

Using DIRECTORY with ff_:queue crashes with Remote Desktop Service and User Profile Disks - questions / tips - ClarionHub