Descriptive Problem Summary: When moving the mouse from an object displayed in a map element in a non-default window to an object in any other window, not letting the mouse pass over any other elements of the second window, MouseEntered() is not called on the second object. If the mouse passes over any elements of the second window before entering the second object, this bug does not occur.
Numbered Steps to Reproduce Problem:
1) Download and run this demo.
2) Move one of the non-default windows so that it partially obscures one of the other maps.
3) Move the mouse from the first window to the second. Notice that the label, which is updated on MouseEntered() does not update.
Expected Results: MouseEntered() to be called between windows.
Actual Results: MouseEntered() is not called.