Reproduce: Go to -> Portal -> Portal settings -> Authentication
I choose the LDAP tab. I do some changes, and after I clicked on the Save button, the General tab shown, not the LDAP tab, where I was.
It worse when I was deeper in the LDAP tab: I clicked on the LDAP Servers' Add button and then on Cancel or Back link. It brings me back to the General tab, instead of LDAP tab.
There are same issues in the whole portal.