In the process of looking up the InCopy version number for another bug report, I opened the About InCopy window. This opened on my second screen and will not clear. There is no exit button, ESC does nothing, clicking it does nothing, clicking the links changes the content of the box but doesn't open any other options, clicking away from the box sends it behind the current window but does not close it. I cannot use InCopy as it is unresponsive underneath this pop-over box. The box can be cleared by closing out of it in Alt+Tab gallery, but the program remains unresponsive. Windows, v19.3