Suppose the super administrator creates a user X with these rights: "participant panel", "create survey", "create user", "delete user" (for sure, X doesn't have a super admin right). Then, if I login to X account and go to User Control page, I see that X is the only entry in the page. Suppose if I add a new user Y from X account and try to reload the User Control page, then the user Y entry appears, HOWEVER user X entry changes to Username = R, Email = R, Full name = R. On the left of this "R" entry, there is a pencil icon (for edit user), if I click that pencil, I will see a blank page. If I reload the blank page, it will say:

"Access denied! You are not allowed to perform this operation!"


Now, if I delete user Y. user X entry becomes normal again (Username, Email, Full name appear as they should be).

Do you have any idea what the "R" is? How to fix this?