When you press ctrl+F to bring up the Find Window, the textbox is not focused and typing will do nothing. I have to either click on the textbox or hit the Tab key to focus which is rather annoying.
Happens every time. It might only be on Mac not sure about Windows. I’m using El Capitan OS if it matters.
Edit: Also occurs with Find All and Replace. Also occurs if you click the icons on the ribbon bar.