There are no *.mo files in the package libwnck-common, version 1:2.30.7-5ubuntu1 (Ubuntu 16.04). Thus the UI strings are in english. I was able to fix this by recompiling the package.
There are no *.mo files in the package libwnck-common, version 1:2.30.7-5ubuntu1 (Ubuntu 16.04).
Thus the UI strings are in english.
I was able to fix this by recompiling the package.