https://bugs.launchpad.net/ubuntu/+source/unity/+bug/938770 looks to be the same bug given that unity --replace does fix it for him too and the symptoms/system are the same.
https:/ /bugs.launchpad .net/ubuntu/ +source/ unity/+ bug/938770 looks to be the same bug given that unity --replace does fix it for him too and the symptoms/system are the same.