R80 / R80.10 Security Management Server uses the Unicode character set and the UTF-8 encoding to store non-English characters.
SmartDashboard R77.X and lower allows the user to use encodings other than UTF-8 for non-English characters in some properties of LDAP Account Unit and LDAP Group.
If these fields contained non-English characters (e.g., Russian, Japanese, Chinese, Korean, etc.) before the upgrade to R80 / R80.10, then they will become corrupted during policy installation on R80 / R80.10 Security Management Server.
The relevant fields are (example is given for Russian characters):
LDAP Account Unit properties - "General" tab - "Domain" field:
LDAP Account Unit properties - "General" tab - "Active Directory SSO configuration" button - "Account Name" field:
LDAP Account Unit properties - "Objects Management" tab - "Branches in use" field - "CN":
LDAP Group properties: