"HasPrivilegeOnEntities" method has failed with "The operation is not supported on the object" with osType(on ESXhost) - "vmnix-x86".

Hi. VMware ESXi API method - "HasPrivilegeOnEntities"(Managed Object - AuthorizationManager) has failed with SoapException - "The operation is not supported on the object.". I noticed that this method fails only with osType - "vmnix-x86". With osType - "win32-x64" this method works correctly. Does anybody have the same problems? Thank you.