Robocopy not copying top level NTFS Permissions

I have using Robocopy and Xcopy for a while. Ocasionally i need to move a
share from one drive to another.
say i have the following structure:

folder1
- subfolder2

subfolder2 has blocked inheritance and specific permissions applied

If i do an XCOPY /x /o it copies the permissions correctly. If i do a
robocopy /copyall, the permissions on subfolder2 is correct, but the
permissions on folder1 are only the permissions that it inherits from its
parent folder.

if subfolder2 had inherted permissions, no permissions copy at all, and it
seems to only apply the parent folder permissions at the source destination.
Isn't robocopy supposed to be able to handle a copy like this? It seems
pretty basic

[darklulu]

Use /COPY:SOU /IS /E /XL /XC /XN /XO

/COPY:SOU to copy security
/IS to include all folder already copied
/E to include empty folder (top level have no file...so empty)
/XL /XC /XN /XO to avoid to copy empty forlder on the target.
eg :
Robocopy.exe <Source> <Destination> /COPY:SOU /IS /E /XL /XC /XN /XO