stuck in full screen mode

Well, something very interesting just happened! Your first suggestion did not work. When I clicked on the icon in the menu at the very top of my screen, the icon disappeared.....but then I clicked on another 1Password icon displayed in the menu bar to the right and under the black area where the search bar is located and it minimized where it opened to insert my password.
So at that point I restarted my computer to see if it still opens the minimized window when I restarted it and it does. I guess as long as I use the icon where it is now located I am all set.
I can't thank you enough for both your expertise and your fast responses.