rpwk

OK, I found the issue — looks like these lines in wp_ultimate_csv_importer.php are the culprit:

174-186:

// Scandinavian characters
function smack_marks_scandiConverter($text){
    $returnvalue="";
    for($i=0;$i<strlen($text);$i++){
        $smacker=hexdec(rawurlencode(substr($text, $i, 1)));
        if($smacker<32||$smacker>1114111){
            $returnvalue.=substr($text, $i, 1);
        }else{
            $returnvalue.="&#".$smacker.";";
        }
    }
    return $returnvalue;
}

and:

394 $data_array['post_title'] = smack_marks_scandiConverter($data_array['post_title']);
395 $data_array['post_content'] = smack_marks_scandiConverter($data_array['post_content']);