What I read from the comment of the reporter. unity is killed but not started again hence leaving user with undecorated windows. Not all the times but in very rare cases I have seen the exact thing on my machine as well.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1036205 Title: Unity --replace gets stuck To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1036205/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs