You can read the first here:
And here is the update that you might have to do aswell.
1.go to setting "regional language prefs"
2. Move second place language in the list to the top (by dragging it up list)
4. Return original language to top of list
6. Lync is now working
Lot's of thanks to my Co-worker @skill named Trond Jelsnes Undrum who found this way deep down in MAC forum........