Ok. Figured it out. It is my fault. I have been playing with unity-tweak tool and set Window Manager > Additional > Window focus mode to "sloppy", changed back to "click" now it works as before. Sorry for the false alarm.
Ok. Figured it out. It is my fault. I have been playing with unity-tweak tool and set Window Manager > Additional > Window focus mode to "sloppy", changed back to "click" now it works as before. Sorry for the false alarm.