In Limesurvey Version 2.05+ Build 140204 the function to manage user groups ("Create/edit user groups") doesn't seem to work properly.

When logged in as a Superadministrator you can create and edit user groups without any problems. But if you give the permissions to a user to create user groups and edit those he created, it doesn't work. The button (+) for creating a group isn't there and when trying to edit a group, the fields are empty and saving changes results on a blank page.

Steps to reproduce:

1. install LS Version 2.05+ Build 140204
2. log in as Superadministrator and create user with all permissions of the category "User groups"
3. create a new group and add the user just created
4. log in as the user just created and go to menu "create/edit user groups"
   The plus sign to create a new group isn't there.
5. choose the group just created
6. click on "Edit current user group"
   The fields are empty.
7. fill in the fields and click on "Update user group"
   The result is a blank page and nothing has changed ..