Univ control demo on W10 pc: bottom of window is cut off, off screen

Today I downloaded and installed the Universal Control app 2.3 pc on my Windows 10 laptop/tablet, opened it and selected demo. The window can be full screen width or not full screen width but in any case the bottom of the window is off screen. Data below the fader color strip is not visible. I caot find a way to reduce the window scale so that it all fits on the screen.