HarmonyOS 鸿蒙Next Scroll嵌套固定size的Grid无法滚动

HarmonyOS 鸿蒙Next Scroll嵌套固定size的Grid无法滚动

Grid固定大小，超过父视图的scroll，但grid无法跟随scroll滚动。我记得Api12之前还是可以的，这个代码有什么问题吗

struct Index {
  [@State](/user/State) data: LazyDataSource<number> = new LazyDataSource()

  aboutToAppear(): void {
    this.data.initData([0,1,2,3,4,5,6,7,8,9,10,11,12,13])
  }

  build() {
    RelativeContainer() {
      Scroll() {
        Grid() {
          LazyForEach(this.data, (item: number)=>{
            GridItem() {
              Text(`${item}`)
                .fontColor(Color.White).textAlign(TextAlign.Center).width('100%').height('100%')
            }
            .backgroundColor(Color.Blue)
            .borderRadius('4vp')
            .size({width:'50vp', height:'50vp'})
          }, (item: number) => item.toString())
        }
        .position({left:0, top:0})
        .columnsGap(4)
        .rowsGap(4)
        .maxCount(this.data.totalCount())
        .layoutDirection(GridDirection.Row)
        .cellLength(50)
        .size({width:'536vp', height:'100%'})
      }
      .padding(4)
      .scrollable(ScrollDirection.Horizontal)
      .backgroundColor(Color.Red)
      .size({width:'200vp', height:'60vp'})
    }
    .height('60vp')
    .width('200vp')
  }
}