Some apps (Terminal, Rhythmbox, Nautilus..) doesn't have global menu, when I reset Unity (unity --reset) global menu is back but when I restart my computer the problem is still here. Upgraded from 14.04 by the way.
Ok, I installed it on VM (fresh install) and the problem is here. So Ubuntu devs released a broken system... https://bugs.launchpad.net/ubuntu/+s...y/+bug/1532226