The informations about the types of help files are not available via the ressource/types.html file.

http://19.moodle.de/help.php?module=moodle&file=resource/types.html&forcelang=
This link openes the ressource/types/*.html files and integrates them in the window.

Actual only the resource/types/label.html is integrated.

The screenshot shows two different views on the same help file.
left side : actual version right side: elder version.

This behaviour is not related to the translation!

The ressources/types*.html files should also be available in the settings page for the ressource.