If you have a Policy that forces Group Type assigned to a Organizational Unit or Domain when viewing Groups in the Web Interface it will always display what is set in the Policy for Group Type no matter what the actual Group Type is. If you remove the Policy the Group Types display properly.
解决办法
This is a known issue and the following Defect ID was created to fix this issue in a future release:
270156: Policy Enforces Group Type Change On The Web Interface