ColorAnimation does not interpolate on static builds

ColorAnimation (and possibly other animation types) does not display interpolated intermediate values when Qt is built statically. In the example below, the color of the object pops between red and green but does not display any in-between colors. If I rebuild using shared linking, the problem goes away. Tested on Visual Studio 2010, Windows 7.

Rectangle {
    SequentialAnimation on color {
        id: blinkAnim
        running: selected
        ColorAnimation { to: "red";     duration: 1000 }
        ColorAnimation { to: "green"; duration: 1000 }
        loops: Animation.Infinite
    }
}