Need to show an InfoBox on the object in some specific case. When InfoBox is shown, an ArgumentException is thrown with this message - "ArgumentException: Getting control 2's position in a group with only 2 controls when doing MouseLeaveWindow Aborting". When info box is hidden, another exceptions is thrown - "ArgumentException: GUILayout: Mismatched LayoutGroup.MouseLeaveWindow". See screen shots to understand the issue correctly.
Issue #270 resolved