You may encounter a ‘Match Failed’ error when modifying LDAP privileges on the DDM web interface.
This is because a domain-specific privilege was previously configured for a domain on the Group Details page, which has now been removed.
Please upgrade your DDM to v1.9.2.26645 or a later version to resolve the issue.
If your DDM is running an old version, the workaround is to delete the relevant LDAP group and then add it again. Alternatively, you can remove the domain-specific privileges before deleting the domain to avoid the issue.