Inserting a citation with an author name containing a special character results in an error. A conversion window comes up followed by the error "Zotero experienced an error updating your document.".
The special character in the Author name is a German umlaut.

FYI: A side from that, inserting citations works fine (as long as I have no bibliography in my document, as described here: http://forums.zotero.org/discussion/8703/ms-word-plugin-document-update-problem)

I'm using Zotero 2b7 with WinWord integration 3a1.