Some apps, notably Quickbooks and Chrome, always end up opening dialog boxes and, in the case of Quickbooks, most new windows *behind* the app. So I need to click to perform the action, then click again to bring the new window into focus.
In other words, in Chrome, if I right click for Save as... it appears that nothing happens. If I click again on the app, the dialog box comes to the front.
Similar with Quickbooks.
Both apps have always done this, but it didn't bug me too much with Chrome. With Quickbooks, though, this is really annoying, because it opens new windows all the time.