I use alt+tab a lot to switch between windows. I usually have 4 Opera windows operating. A recently started problem is when using alt+tab to switch to an Opera window, it does switch to the Opera window but also sometimes the Opera window has its menu showing, which is not wanted and needs to be cancelled before I can do anything in the window… any ideas please?

Recently pressing Ctrl W sometimes closes more than one tab or even the whole window containing many tabs, has anyone else experienced this?