4.7 - Active Directory permissions problem

I'm having an issue trying to change AD permissions on objects.  Whenever I try to add an AD user or group, the name disappears from the list after clicking "OK" or "Apply."  I can modify permissions for existing users, but it seems that I have to do that through Special Permissions, instead of the usual full control/modify/read options.

I'm using unRAID 4.7 on a 2008r2 domain.  I've gotten the unRAID server to join the domain successfully, and I can run "wbinfo -u" and "wbinfo -i <domain>\\<user>" from the console without error.

I just checked the syslog, and I saw a few errors about extended attributes:

kernel: REISERFS warning (device sda1): jdm-20002 reiserfs_xattr_get: Invalid hash for xattr (user.SAMBA_PAI) associated with [1919251317 1296126766 0x505f4142 UNKNOWN] (Minor Issues)

kernel: REISERFS warning (device sda1): jdm-20002 reiserfs_xattr_get: Invalid hash for xattr (user.SAMBA_PAI) associated with [1919251317 1296126766 0x505f4142 UNKNOWN] (Minor Issues)

kernel: REISERFS warning (device md2): jdm-20002 reiserfs_xattr_get: Invalid hash for xattr (user.SAMBA_PAI) associated with [1919251317 1296126766 0x505f4142 UNKNOWN] (Minor Issues)

kernel: REISERFS warning (device md2): jdm-20002 reiserfs_xattr_get: Invalid hash for xattr (user.SAMBA_PAI) associated with [1919251317 1296126766 0x505f4142 UNKNOWN] (Minor Issues)

sda1 is my cache drive, and md2 is the second non-parity disk in my array

I'm guessing that the xattr issue is what's preventing the permission changes from being saved, but I have no idea what to do to investigate further or repair the extended attributes.

Can anyone give me some ideas, or point me at some commands to check/repair the folder and file attributes?

3-Apr Update:

After mucking around a bit more, I realized there might be a formatting problem.  I think I had started with a clean 5.0beta14 build, formatted the drives, then switched to 4.7 after realizing that 5.0 doesn't work with AD (at least not with any of the versions available from the website).  So I started from scratch with 4.7 and precleared all drives again.  Following the guide at eyespytechnologies (which is a little outdated, even for 4.7), I joined the server to the domain with no issues.  But then none of the shares are available from any domain computer -- and the flash share is only available to non-domain computers.

At this point I've given up and I'm going back to regular Unraid-managed Users.  Maybe I'll revisit this when we get a newer stable release that works with AD.