Potx does not create a complete pot file, missing strings

I have been using the potx module to translate some contributed modues (Drupal 5.1 local installation for test and learning purposes). So far, so good as it is easier for me to use than the extractor.php with 4.x.

However, I have noticed it skips or seems to skip some strings when exporting the texts. Example:

With pathauto.module (pathauto.module,v 1.44.2.5 2007/01/20 23:26:24) installed, I go to the "Extract strings" tab in localization page of my site and I ask it to extract the strings.

No error message, it generates a text and I copy-paste it into a plain text doc (Windows 2K), then I change the extension to .po and I open it with poedit. After adding the needed data (plural, language code etc...), I proceed to translate it.

But there are strings that refuse to be translated and, when searched with poedit, are no present inside the po file.

One example is the "Pathauto node settings (second fold inside the pathauto page). After doing some research, I see it seems to ignore the strings inside the pathauto_node.inc file (that are inside the pathauto module directory).

This is one example. If anybody is interested, I could try to provide more feedback.

Thank you :)