It seems that if in a adopted table, the primary key has at least one capital letter, 'edit item' in table's view creates a warning in file data_entity_views_handler_field_edit_link.inc, line '28: $this->options['alter']['path'] = 'admin/content/data/entity/' . $table . '/' . $values->$base_field;'. For some reason, $base_field is in lower case while in databse is not (== has at least one capital letter) and so a warning is created. Also, 'edit item' link gets corrupted.

The problem is not shown in tables where all letters of the primary key are in lower case.