I've experienced it again and I think I've found a strange misbehavior which could be responsible for the problem. See the attached screenshot. The purple arrow shows "the problem".
** Attachment added: "bug spread reproduced.png" https://bugs.launchpad.net/compiz/+bug/1070034/+attachment/3415819/+files/bug%20spread%20reproduced.png -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1070034 Title: problems changing window focus in Unity Spread To manage notifications about this bug go to: https://bugs.launchpad.net/compiz/+bug/1070034/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs