The German Localization of Vienna is kind of broken:
From the console.log:
> CFPropertyListCreateFromXMLData(): plist parse
failed; the data is not proper UTF-8. The file name for
this data could be:
> The parser will retry as in 10.2, but the problem
should be corrected in the plist.
brought up TextEdit showing the umlauts, so this file
is encoded as Mac OS Roman.
I use Vienna 18.104.22.1687.
An UTF-8 encoded InfoPlist.strings file is attached.