Apache Directory Studio fails to show OID objects

If you suddenly start getting following error while browsing OID with ADS:

Error while reading entry
[LDAP: error code 53 - Attribute orclrevpwd can be searched only over a mutually authenticated SSL session.

and you did not mess with the "orclrevpwd" attribute at all, (or did not set orcldataprivacymode to 1) ;

try disabling "Show operational attributes" of Apache at:
Window > Preferences > Entry Editor.