Please check the problem View "All-persons", you order the result with custom field "koko nimi", but the other persons posts do not have such a field, so the view only display 4 posts, you can try order the view by post date, then all posts should be displayed.
More help:
http://codex.wordpress.org/Class_Reference/WP_Query#Order_.26_Orderby_Parameters
'meta_value' – Note that a 'meta_key=keyname' must also be present in the query.
