I appreciate that someone is taking a look...
Here is some more info:
1) It does NOT happen on X3e on the same system
2) It happens with X-Ray turned ON or OFF in Preferences
3) I can confirm the same behavior in the following Views:
Console View, Piano Roll View, Browser, Staff View, Event List, Lyrics, Video, Big Time, Markers, Tempo, Meter/Key, Sys/Ex, Navigator, Surround Panner
4) In every case you open a View and overlay over the docked Control Bar. When the mouse cursor is in the current View and above the position where the Control Bar is it scrolls the Control Bar. Move it cursor up it scrolls the current window you are working with. In all cases the current view is active (highlighted blue) and X-Ray if off.
A clear example of this is open the Sys/Ex window and click in the Sys/Ex window where the docked Control Bar is located and scroll the mouse wheel. Then click on a sys/ex value above the control bar position. Why would we pass thru or "clickthru" in this case?