Some webparts are missing in pages or customized list views.
The problem is, that there is acutally no solution from Microsoft to copy webparts with multilingual titles. And there is another problems with duplicated webparts in listviews, if some webparts has the same title.
To solve this problem please make sure that each webpart has its own unique title. Also please don't make multilingual webpart title. The Collaboration Manager always take the webpart title from the original site language.