I create two anonymous users for access the ep. The first (default) access the ep with the portuguese language and your url is http://host:port/irj/portal/anonymous. The second anonymous user access the ep with the spanish language and your url is http://host:port/irj/portal/anonymous?guest_user=user_es. However, when I navigate in ep with the second user, the language for the user is lost, and I see the language of default anonymous user (portuguese). I apply the SAP Note 820247, but the problem persist.
Obs.: In the role of anonymous access (portuguese and spanish) exists one iview to login in the ep (modified copy of the original). When I access ep without this iview, the problem does not occur, however, in these cases, I do not obtain to have access another anonymous user in the same window.