Some customers have reported the error below. A simple restart of the computer will fix this.
Before Windows 10, the Rhino selection menu (when multiple objects were selected), could be scrolled using the mouse wheel without regard for where the mouse pointer was on the Desktop. The new Windows 10 default behavior, the pointer must be over the menu to scroll through the list. This effects Rhino V4 and V5 as well.
To restore the pre-Windows 10 behavior: Left click at bottom left corner, go to Settings→Devices→Mouse & touchpad, and turn off: Scroll inactive windows when I hover over them. Selection menu wheel scrolling will work like it did in earlier versions of Windows.
rhino/windows10.txt · Last modified: 2020/08/14 (external edit)