I'm surprised this hasn't been assigned any importance, its very annoying. I'm attaching a few more screenshots, you can see the Dash and Alt-tab switcher are behind a window. I've observed that in my case it has something to do with using GIMP.
** Attachment added: "Unity behind.zip" https://bugs.launchpad.net/ubuntu/+source/unity/+bug/886559/+attachment/2598830/+files/Unity%20behind.zip -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/886559 Title: Unity displays in the background (loses focus) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/886559/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs