Problem
The UMC system diagnose tool reports warnings for SYSVOL ACL entries:
Investigation
In this case there is a mismatch between the seen and the expected values. You have to check in details to see the mismatch.
The file tells “O:DAG:DAD:” while the expected value is “O:DAG:DAD:PAR”.
Solution
This issue is only cosmetically and does not tell any misconfiguration or misfunctions.
In case you want to correct this behaviour start the recommended “samba-tool ntacl sysvolreset” but this might take a while.
Otherwise simply ignore the warning.
Note: There is a bug in order to fix the issue.