Create Nodes for multiple languages in webform?
I think maybe your problem is because mistake configuration of translation

Enable translation support for a content type


Navigate to the Content types administration page (Administration >
Content > Types in Drupal 6, or Administration > Structure > Content
types in Drupal 7).   
Select a content type you want translated, and select "edit", then "Workflow settings" for Drupal 6 or "Publishing options" for
Drupal 7.
At the "Multilingual support" section, select "Enabled, with translation".
   Be sure to save each content type after enabling multilingual support.