Layoutinfo.UNMANAGED not working for Button control inside ScrollView.

Work Around for this is use - layoutInfo: LayoutInfo {width:<width> height:<height>} instead of using LayoutInfo.UNMANAGED and setting width and height directly.
Given below the testcase:
package scrollbarbugs;

import javafx.scene.Scene;
import javafx.stage.Stage;

import com.sun.javafx.scene.control.ScrollView;
import javafx.scene.layout.LayoutInfo;

import javafx.scene.control.CheckBox;

import javafx.scene.control.Button;


        var h: Number = 320;
        var w: Number = 240;
        //var httpRes = param.getString("httpRes");

        var blocksMouse = false;
        var btnOpacity = 1.0;
        var scrollViewDisable = false;
        var toggleEffect = true;
        var button = Button {
                text: "Below ScrollView"
layoutInfo:LayoutInfo.UNMANAGED
                width: 155
                height:155
                translateX: 30
                translateY: 65
                opacity: bind btnOpacity
                action: function() {
                    if(toggleEffect) {
                        btnOpacity = 0.2;
                        toggleEffect = false;
                    }
                    else {
                        btnOpacity = 1.0;
                        toggleEffect = true;
                    }
                }


        };

        var node = Button {
                text: "Inside"
layoutInfo:LayoutInfo.UNMANAGED
                width: 135
                height:135
                blocksMouse:false

        };
        var scrollView = ScrollView
        {
            node: node
layoutInfo:LayoutInfo.UNMANAGED
            width: 120
            height: 120
            translateX: 10
            translateY: 5
            disable: bind scrollViewDisable
            blocksMouse: bind blocksMouse
        };

        var btnCheckBox = CheckBox {
                            translateX: 30
                            translateY: 230
                            text: bind "Scrollview blocksMouse {scrollView.blocksMouse}"
                            selected: bind blocksMouse with inverse
        };
        var sVDisableCheckBox = CheckBox {
                            translateX: 30
                            translateY: 260
                            text: bind "ScrollView disable {scrollView.disable}"
                            selected: bind scrollViewDisable with inverse
        };
        Stage {
            scene: Scene {
                height: h;
                width: w;
                content: bind [ button, scrollView, btnCheckBox,sVDisableCheckBox ];
            }
        }
        scrollView.requestFocus();