I have the same problem but think it is related to problems with the path module <a href="http://drupal.org/node/269877">http://drupal.org/node/269877</a>
<div>I will check this patch soon because path/pathauto is not working correct now. But if you have the above issue you probably should have seen some of these error messages when bulk updating the aliasses of nodes.</div>
<div><br></div><div>Hans</div>