samba - Sep 2009 - net rpc share migrate files

Hi!
when i try to migrate files from nt4 share to smb share ...

net rpc share migrate files SHARE_DATA -I 172.10.10.1 -S NT4 \
--acls --timestamps -v

works, but

net rpc share migrate files SHARE_DATA -I 172.10.10.1 -S NT4 \
--acls --attrs --timestamps -v

syncing    [SHARE_DATA] files and directories including ACLs, including
DOS Attributes (preserving timestamps)
failed to set file-attrs: NT_STATUS_ACCESS_DENIED
Could handle directory attributes for top level directory of share
SHARE_DATA. Error NT_STATUS_ACCESS_DENIED
Could not handle the top level directory permissions for the share:
SHARE_DATA

any ideas ?
thanks